Home / 5,005.72-7,508.56-2,086.08

Finding the Fourth Proportional to 5,005.72, 7,508.56 and 2,086.08

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Solution

The fourth proportional to 5,005.72, 7,508.56 and 2,086.08 is: 3,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.72 : 7,508.56 = 2,086.08 : x
  2. Step 2: Convert to fraction form
    5,005.72/7,508.56 = 2,086.08/x
  3. Step 3: Cross multiply
    5,005.72x = 7,508.56 × 2,086.08
  4. Step 4: Simplify right side
    5,005.72x = 15,663,456.84
  5. Step 5: Solve for x
    x = 15,663,456.84/5,005.72
  6. Step 6: Final answer
    x = 3,129.11

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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.