Home / 1,031.48-1,423.17-633.35

Finding the Fourth Proportional to 1,031.48, 1,423.17 and 633.35

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Solution

The fourth proportional to 1,031.48, 1,423.17 and 633.35 is: 873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.48 : 1,423.17 = 633.35 : x
  2. Step 2: Convert to fraction form
    1,031.48/1,423.17 = 633.35/x
  3. Step 3: Cross multiply
    1,031.48x = 1,423.17 × 633.35
  4. Step 4: Simplify right side
    1,031.48x = 901,364.72
  5. Step 5: Solve for x
    x = 901,364.72/1,031.48
  6. Step 6: Final answer
    x = 873.86

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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.