Home / 4,680.20-6,459.78-2,691.90

Finding the Fourth Proportional to 4,680.20, 6,459.78 and 2,691.90

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Solution

The fourth proportional to 4,680.20, 6,459.78 and 2,691.90 is: 3,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.20 : 6,459.78 = 2,691.90 : x
  2. Step 2: Convert to fraction form
    4,680.20/6,459.78 = 2,691.90/x
  3. Step 3: Cross multiply
    4,680.20x = 6,459.78 × 2,691.90
  4. Step 4: Simplify right side
    4,680.20x = 17,389,081.78
  5. Step 5: Solve for x
    x = 17,389,081.78/4,680.20
  6. Step 6: Final answer
    x = 3,715.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.