Home / 3,742.85-5,607.25-3,130.49

Finding the Fourth Proportional to 3,742.85, 5,607.25 and 3,130.49

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Solution

The fourth proportional to 3,742.85, 5,607.25 and 3,130.49 is: 4,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.85 : 5,607.25 = 3,130.49 : x
  2. Step 2: Convert to fraction form
    3,742.85/5,607.25 = 3,130.49/x
  3. Step 3: Cross multiply
    3,742.85x = 5,607.25 × 3,130.49
  4. Step 4: Simplify right side
    3,742.85x = 17,553,440.05
  5. Step 5: Solve for x
    x = 17,553,440.05/3,742.85
  6. Step 6: Final answer
    x = 4,689.86

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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.