Home / 7,400.78-11,095.70-3,500.62

Finding the Fourth Proportional to 7,400.78, 11,095.70 and 3,500.62

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Solution

The fourth proportional to 7,400.78, 11,095.70 and 3,500.62 is: 5,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.78 : 11,095.70 = 3,500.62 : x
  2. Step 2: Convert to fraction form
    7,400.78/11,095.70 = 3,500.62/x
  3. Step 3: Cross multiply
    7,400.78x = 11,095.70 × 3,500.62
  4. Step 4: Simplify right side
    7,400.78x = 38,841,829.33
  5. Step 5: Solve for x
    x = 38,841,829.33/7,400.78
  6. Step 6: Final answer
    x = 5,248.34

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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.