Home / 5,160.80-7,740.60-2,236.72

Finding the Fourth Proportional to 5,160.80, 7,740.60 and 2,236.72

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Solution

The fourth proportional to 5,160.80, 7,740.60 and 2,236.72 is: 3,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.80 : 7,740.60 = 2,236.72 : x
  2. Step 2: Convert to fraction form
    5,160.80/7,740.60 = 2,236.72/x
  3. Step 3: Cross multiply
    5,160.80x = 7,740.60 × 2,236.72
  4. Step 4: Simplify right side
    5,160.80x = 17,313,554.83
  5. Step 5: Solve for x
    x = 17,313,554.83/5,160.80
  6. Step 6: Final answer
    x = 3,354.82

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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.