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Finding the Fourth Proportional to 5,064.57, 6,989.00 and 2,939.99

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Solution

The fourth proportional to 5,064.57, 6,989.00 and 2,939.99 is: 4,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,064.57 : 6,989.00 = 2,939.99 : x
  2. Step 2: Convert to fraction form
    5,064.57/6,989.00 = 2,939.99/x
  3. Step 3: Cross multiply
    5,064.57x = 6,989.00 × 2,939.99
  4. Step 4: Simplify right side
    5,064.57x = 20,547,540.47
  5. Step 5: Solve for x
    x = 20,547,540.47/5,064.57
  6. Step 6: Final answer
    x = 4,057.11

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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.