Home / 1,637.87-2,259.97-974.61

Finding the Fourth Proportional to 1,637.87, 2,259.97 and 974.61

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Solution

The fourth proportional to 1,637.87, 2,259.97 and 974.61 is: 1,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.87 : 2,259.97 = 974.61 : x
  2. Step 2: Convert to fraction form
    1,637.87/2,259.97 = 974.61/x
  3. Step 3: Cross multiply
    1,637.87x = 2,259.97 × 974.61
  4. Step 4: Simplify right side
    1,637.87x = 2,202,586.93
  5. Step 5: Solve for x
    x = 2,202,586.93/1,637.87
  6. Step 6: Final answer
    x = 1,344.79

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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.