Home / 1,354.13-2,031.37-476.42

Finding the Fourth Proportional to 1,354.13, 2,031.37 and 476.42

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Solution

The fourth proportional to 1,354.13, 2,031.37 and 476.42 is: 714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.13 : 2,031.37 = 476.42 : x
  2. Step 2: Convert to fraction form
    1,354.13/2,031.37 = 476.42/x
  3. Step 3: Cross multiply
    1,354.13x = 2,031.37 × 476.42
  4. Step 4: Simplify right side
    1,354.13x = 967,773.95
  5. Step 5: Solve for x
    x = 967,773.95/1,354.13
  6. Step 6: Final answer
    x = 714.69

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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.