Home / 3,129.34-4,692.56-1,154.47

Finding the Fourth Proportional to 3,129.34, 4,692.56 and 1,154.47

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Solution

The fourth proportional to 3,129.34, 4,692.56 and 1,154.47 is: 1,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.34 : 4,692.56 = 1,154.47 : x
  2. Step 2: Convert to fraction form
    3,129.34/4,692.56 = 1,154.47/x
  3. Step 3: Cross multiply
    3,129.34x = 4,692.56 × 1,154.47
  4. Step 4: Simplify right side
    3,129.34x = 5,417,419.74
  5. Step 5: Solve for x
    x = 5,417,419.74/3,129.34
  6. Step 6: Final answer
    x = 1,731.17

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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.