Home / 5,149.12-7,103.28-3,051.76

Finding the Fourth Proportional to 5,149.12, 7,103.28 and 3,051.76

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Solution

The fourth proportional to 5,149.12, 7,103.28 and 3,051.76 is: 4,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.12 : 7,103.28 = 3,051.76 : x
  2. Step 2: Convert to fraction form
    5,149.12/7,103.28 = 3,051.76/x
  3. Step 3: Cross multiply
    5,149.12x = 7,103.28 × 3,051.76
  4. Step 4: Simplify right side
    5,149.12x = 21,677,505.77
  5. Step 5: Solve for x
    x = 21,677,505.77/5,149.12
  6. Step 6: Final answer
    x = 4,209.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.