Home / 7,587.71-11,381.61-2,657.44

Finding the Fourth Proportional to 7,587.71, 11,381.61 and 2,657.44

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Solution

The fourth proportional to 7,587.71, 11,381.61 and 2,657.44 is: 3,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.71 : 11,381.61 = 2,657.44 : x
  2. Step 2: Convert to fraction form
    7,587.71/11,381.61 = 2,657.44/x
  3. Step 3: Cross multiply
    7,587.71x = 11,381.61 × 2,657.44
  4. Step 4: Simplify right side
    7,587.71x = 30,245,969.87
  5. Step 5: Solve for x
    x = 30,245,969.87/7,587.71
  6. Step 6: Final answer
    x = 3,986.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.