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Finding the Fourth Proportional to 1,354.32, 2,031.48 and 703.71

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Solution

The fourth proportional to 1,354.32, 2,031.48 and 703.71 is: 1,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.32 : 2,031.48 = 703.71 : x
  2. Step 2: Convert to fraction form
    1,354.32/2,031.48 = 703.71/x
  3. Step 3: Cross multiply
    1,354.32x = 2,031.48 × 703.71
  4. Step 4: Simplify right side
    1,354.32x = 1,429,572.79
  5. Step 5: Solve for x
    x = 1,429,572.79/1,354.32
  6. Step 6: Final answer
    x = 1,055.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.