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Finding the Fourth Proportional to 5,006.00, 6,909.13 and 3,390.20

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Solution

The fourth proportional to 5,006.00, 6,909.13 and 3,390.20 is: 4,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,006.00 : 6,909.13 = 3,390.20 : x
  2. Step 2: Convert to fraction form
    5,006.00/6,909.13 = 3,390.20/x
  3. Step 3: Cross multiply
    5,006.00x = 6,909.13 × 3,390.20
  4. Step 4: Simplify right side
    5,006.00x = 23,423,328.13
  5. Step 5: Solve for x
    x = 23,423,328.13/5,006.00
  6. Step 6: Final answer
    x = 4,679.05

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1.5x scale

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.