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Finding the Fourth Proportional to 5,853.42, 8,780.13 and 2,390.67

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Solution

The fourth proportional to 5,853.42, 8,780.13 and 2,390.67 is: 3,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.42 : 8,780.13 = 2,390.67 : x
  2. Step 2: Convert to fraction form
    5,853.42/8,780.13 = 2,390.67/x
  3. Step 3: Cross multiply
    5,853.42x = 8,780.13 × 2,390.67
  4. Step 4: Simplify right side
    5,853.42x = 20,990,349.49
  5. Step 5: Solve for x
    x = 20,990,349.49/5,853.42
  6. Step 6: Final answer
    x = 3,586.00

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Half scale
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Double scale
Find fourth proportional to 5,854.42, 8,781.63 and 2,391.67
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.