Home / 5,042.60-7,561.20-2,117.60

Finding the Fourth Proportional to 5,042.60, 7,561.20 and 2,117.60

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Solution

The fourth proportional to 5,042.60, 7,561.20 and 2,117.60 is: 3,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042.60 : 7,561.20 = 2,117.60 : x
  2. Step 2: Convert to fraction form
    5,042.60/7,561.20 = 2,117.60/x
  3. Step 3: Cross multiply
    5,042.60x = 7,561.20 × 2,117.60
  4. Step 4: Simplify right side
    5,042.60x = 16,011,597.12
  5. Step 5: Solve for x
    x = 16,011,597.12/5,042.60
  6. Step 6: Final answer
    x = 3,175.27

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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.