Home / 5,137.31-7,089.50-2,899.19

Finding the Fourth Proportional to 5,137.31, 7,089.50 and 2,899.19

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Solution

The fourth proportional to 5,137.31, 7,089.50 and 2,899.19 is: 4,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.31 : 7,089.50 = 2,899.19 : x
  2. Step 2: Convert to fraction form
    5,137.31/7,089.50 = 2,899.19/x
  3. Step 3: Cross multiply
    5,137.31x = 7,089.50 × 2,899.19
  4. Step 4: Simplify right side
    5,137.31x = 20,553,757.56
  5. Step 5: Solve for x
    x = 20,553,757.56/5,137.31
  6. Step 6: Final answer
    x = 4,000.88

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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.