Home / 7,587.10-11,380.86-2,909.38

Finding the Fourth Proportional to 7,587.10, 11,380.86 and 2,909.38

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Solution

The fourth proportional to 7,587.10, 11,380.86 and 2,909.38 is: 4,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.10 : 11,380.86 = 2,909.38 : x
  2. Step 2: Convert to fraction form
    7,587.10/11,380.86 = 2,909.38/x
  3. Step 3: Cross multiply
    7,587.10x = 11,380.86 × 2,909.38
  4. Step 4: Simplify right side
    7,587.10x = 33,111,246.47
  5. Step 5: Solve for x
    x = 33,111,246.47/7,587.10
  6. Step 6: Final answer
    x = 4,364.15

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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.