Home / 1,342.17-2,012.85-476.28

Finding the Fourth Proportional to 1,342.17, 2,012.85 and 476.28

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Solution

The fourth proportional to 1,342.17, 2,012.85 and 476.28 is: 714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.17 : 2,012.85 = 476.28 : x
  2. Step 2: Convert to fraction form
    1,342.17/2,012.85 = 476.28/x
  3. Step 3: Cross multiply
    1,342.17x = 2,012.85 × 476.28
  4. Step 4: Simplify right side
    1,342.17x = 958,680.20
  5. Step 5: Solve for x
    x = 958,680.20/1,342.17
  6. Step 6: Final answer
    x = 714.28

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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.