Home / 5,853.70-8,780.56-2,390.95

Finding the Fourth Proportional to 5,853.70, 8,780.56 and 2,390.95

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Solution

The fourth proportional to 5,853.70, 8,780.56 and 2,390.95 is: 3,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.70 : 8,780.56 = 2,390.95 : x
  2. Step 2: Convert to fraction form
    5,853.70/8,780.56 = 2,390.95/x
  3. Step 3: Cross multiply
    5,853.70x = 8,780.56 × 2,390.95
  4. Step 4: Simplify right side
    5,853.70x = 20,993,914.84
  5. Step 5: Solve for x
    x = 20,993,914.84/5,853.70
  6. Step 6: Final answer
    x = 3,586.43

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Double scale
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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.