Home / 5,398.90-7,451.87-3,515.19

Finding the Fourth Proportional to 5,398.90, 7,451.87 and 3,515.19

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Solution

The fourth proportional to 5,398.90, 7,451.87 and 3,515.19 is: 4,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.90 : 7,451.87 = 3,515.19 : x
  2. Step 2: Convert to fraction form
    5,398.90/7,451.87 = 3,515.19/x
  3. Step 3: Cross multiply
    5,398.90x = 7,451.87 × 3,515.19
  4. Step 4: Simplify right side
    5,398.90x = 26,194,713.16
  5. Step 5: Solve for x
    x = 26,194,713.16/5,398.90
  6. Step 6: Final answer
    x = 4,851.86

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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.