Home / 1,354.50-2,031.89-623.97

Finding the Fourth Proportional to 1,354.50, 2,031.89 and 623.97

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Solution

The fourth proportional to 1,354.50, 2,031.89 and 623.97 is: 936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.50 : 2,031.89 = 623.97 : x
  2. Step 2: Convert to fraction form
    1,354.50/2,031.89 = 623.97/x
  3. Step 3: Cross multiply
    1,354.50x = 2,031.89 × 623.97
  4. Step 4: Simplify right side
    1,354.50x = 1,267,835.28
  5. Step 5: Solve for x
    x = 1,267,835.28/1,354.50
  6. Step 6: Final answer
    x = 936.02

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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.