Home / 7,702.41-11,553.65-2,155.76

Finding the Fourth Proportional to 7,702.41, 11,553.65 and 2,155.76

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Solution

The fourth proportional to 7,702.41, 11,553.65 and 2,155.76 is: 3,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.41 : 11,553.65 = 2,155.76 : x
  2. Step 2: Convert to fraction form
    7,702.41/11,553.65 = 2,155.76/x
  3. Step 3: Cross multiply
    7,702.41x = 11,553.65 × 2,155.76
  4. Step 4: Simplify right side
    7,702.41x = 24,906,827.98
  5. Step 5: Solve for x
    x = 24,906,827.98/7,702.41
  6. Step 6: Final answer
    x = 3,233.64

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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.