Home / 1,472.34-2,031.95-1,001.28

Finding the Fourth Proportional to 1,472.34, 2,031.95 and 1,001.28

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Solution

The fourth proportional to 1,472.34, 2,031.95 and 1,001.28 is: 1,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.34 : 2,031.95 = 1,001.28 : x
  2. Step 2: Convert to fraction form
    1,472.34/2,031.95 = 1,001.28/x
  3. Step 3: Cross multiply
    1,472.34x = 2,031.95 × 1,001.28
  4. Step 4: Simplify right side
    1,472.34x = 2,034,536.98
  5. Step 5: Solve for x
    x = 2,034,536.98/1,472.34
  6. Step 6: Final answer
    x = 1,381.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.