Home / 7,641.90-11,458.80-2,711.70

Finding the Fourth Proportional to 7,641.90, 11,458.80 and 2,711.70

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Solution

The fourth proportional to 7,641.90, 11,458.80 and 2,711.70 is: 4,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.90 : 11,458.80 = 2,711.70 : x
  2. Step 2: Convert to fraction form
    7,641.90/11,458.80 = 2,711.70/x
  3. Step 3: Cross multiply
    7,641.90x = 11,458.80 × 2,711.70
  4. Step 4: Simplify right side
    7,641.90x = 31,072,827.96
  5. Step 5: Solve for x
    x = 31,072,827.96/7,641.90
  6. Step 6: Final answer
    x = 4,066.11

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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.