Home / 5,324.91-7,987.85-1,429.29

Finding the Fourth Proportional to 5,324.91, 7,987.85 and 1,429.29

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Solution

The fourth proportional to 5,324.91, 7,987.85 and 1,429.29 is: 2,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.91 : 7,987.85 = 1,429.29 : x
  2. Step 2: Convert to fraction form
    5,324.91/7,987.85 = 1,429.29/x
  3. Step 3: Cross multiply
    5,324.91x = 7,987.85 × 1,429.29
  4. Step 4: Simplify right side
    5,324.91x = 11,416,946.98
  5. Step 5: Solve for x
    x = 11,416,946.98/5,324.91
  6. Step 6: Final answer
    x = 2,144.06

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1.5x scale

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.