Home / 5,351.14-7,387.80-3,491.38

Finding the Fourth Proportional to 5,351.14, 7,387.80 and 3,491.38

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Solution

The fourth proportional to 5,351.14, 7,387.80 and 3,491.38 is: 4,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.14 : 7,387.80 = 3,491.38 : x
  2. Step 2: Convert to fraction form
    5,351.14/7,387.80 = 3,491.38/x
  3. Step 3: Cross multiply
    5,351.14x = 7,387.80 × 3,491.38
  4. Step 4: Simplify right side
    5,351.14x = 25,793,617.16
  5. Step 5: Solve for x
    x = 25,793,617.16/5,351.14
  6. Step 6: Final answer
    x = 4,820.21

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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.