Home / 7,160.10-10,740.33-2,778.54

Finding the Fourth Proportional to 7,160.10, 10,740.33 and 2,778.54

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Solution

The fourth proportional to 7,160.10, 10,740.33 and 2,778.54 is: 4,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.10 : 10,740.33 = 2,778.54 : x
  2. Step 2: Convert to fraction form
    7,160.10/10,740.33 = 2,778.54/x
  3. Step 3: Cross multiply
    7,160.10x = 10,740.33 × 2,778.54
  4. Step 4: Simplify right side
    7,160.10x = 29,842,436.52
  5. Step 5: Solve for x
    x = 29,842,436.52/7,160.10
  6. Step 6: Final answer
    x = 4,167.88

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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.