Home / 5,031.08-7,545.78-2,780.24

Finding the Fourth Proportional to 5,031.08, 7,545.78 and 2,780.24

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Solution

The fourth proportional to 5,031.08, 7,545.78 and 2,780.24 is: 4,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.08 : 7,545.78 = 2,780.24 : x
  2. Step 2: Convert to fraction form
    5,031.08/7,545.78 = 2,780.24/x
  3. Step 3: Cross multiply
    5,031.08x = 7,545.78 × 2,780.24
  4. Step 4: Simplify right side
    5,031.08x = 20,979,079.39
  5. Step 5: Solve for x
    x = 20,979,079.39/5,031.08
  6. Step 6: Final answer
    x = 4,169.90

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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.