Home / 3,913.13-5,397.18-2,718.12

Finding the Fourth Proportional to 3,913.13, 5,397.18 and 2,718.12

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Solution

The fourth proportional to 3,913.13, 5,397.18 and 2,718.12 is: 3,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.13 : 5,397.18 = 2,718.12 : x
  2. Step 2: Convert to fraction form
    3,913.13/5,397.18 = 2,718.12/x
  3. Step 3: Cross multiply
    3,913.13x = 5,397.18 × 2,718.12
  4. Step 4: Simplify right side
    3,913.13x = 14,670,182.90
  5. Step 5: Solve for x
    x = 14,670,182.90/3,913.13
  6. Step 6: Final answer
    x = 3,748.96

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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.