Home / 4,421.07-6,630.27-2,078.75

Finding the Fourth Proportional to 4,421.07, 6,630.27 and 2,078.75

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Solution

The fourth proportional to 4,421.07, 6,630.27 and 2,078.75 is: 3,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.07 : 6,630.27 = 2,078.75 : x
  2. Step 2: Convert to fraction form
    4,421.07/6,630.27 = 2,078.75/x
  3. Step 3: Cross multiply
    4,421.07x = 6,630.27 × 2,078.75
  4. Step 4: Simplify right side
    4,421.07x = 13,782,640.61
  5. Step 5: Solve for x
    x = 13,782,640.61/4,421.07
  6. Step 6: Final answer
    x = 3,117.49

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Half scale
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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.