Home / 5,137.20-7,089.75-2,899.62

Finding the Fourth Proportional to 5,137.20, 7,089.75 and 2,899.62

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Solution

The fourth proportional to 5,137.20, 7,089.75 and 2,899.62 is: 4,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.20 : 7,089.75 = 2,899.62 : x
  2. Step 2: Convert to fraction form
    5,137.20/7,089.75 = 2,899.62/x
  3. Step 3: Cross multiply
    5,137.20x = 7,089.75 × 2,899.62
  4. Step 4: Simplify right side
    5,137.20x = 20,557,580.90
  5. Step 5: Solve for x
    x = 20,557,580.90/5,137.20
  6. Step 6: Final answer
    x = 4,001.71

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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.