Home / 7,740.28-11,611.50-2,545.48

Finding the Fourth Proportional to 7,740.28, 11,611.50 and 2,545.48

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Solution

The fourth proportional to 7,740.28, 11,611.50 and 2,545.48 is: 3,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.28 : 11,611.50 = 2,545.48 : x
  2. Step 2: Convert to fraction form
    7,740.28/11,611.50 = 2,545.48/x
  3. Step 3: Cross multiply
    7,740.28x = 11,611.50 × 2,545.48
  4. Step 4: Simplify right side
    7,740.28x = 29,556,841.02
  5. Step 5: Solve for x
    x = 29,556,841.02/7,740.28
  6. Step 6: Final answer
    x = 3,818.58

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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.