Home / 7,740.16-11,611.92-2,545.84

Finding the Fourth Proportional to 7,740.16, 11,611.92 and 2,545.84

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Solution

The fourth proportional to 7,740.16, 11,611.92 and 2,545.84 is: 3,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.16 : 11,611.92 = 2,545.84 : x
  2. Step 2: Convert to fraction form
    7,740.16/11,611.92 = 2,545.84/x
  3. Step 3: Cross multiply
    7,740.16x = 11,611.92 × 2,545.84
  4. Step 4: Simplify right side
    7,740.16x = 29,562,090.41
  5. Step 5: Solve for x
    x = 29,562,090.41/7,740.16
  6. Step 6: Final answer
    x = 3,819.31

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1.5x scale

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.