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Finding the Fourth Proportional to 5,289.92, 7,300.07 and 2,899.90

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Solution

The fourth proportional to 5,289.92, 7,300.07 and 2,899.90 is: 4,001.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.92 : 7,300.07 = 2,899.90 : x
  2. Step 2: Convert to fraction form
    5,289.92/7,300.07 = 2,899.90/x
  3. Step 3: Cross multiply
    5,289.92x = 7,300.07 × 2,899.90
  4. Step 4: Simplify right side
    5,289.92x = 21,169,472.99
  5. Step 5: Solve for x
    x = 21,169,472.99/5,289.92
  6. Step 6: Final answer
    x = 4,001.85

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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.