Home / 5,127.75-7,076.30-3,731.67

Finding the Fourth Proportional to 5,127.75, 7,076.30 and 3,731.67

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Solution

The fourth proportional to 5,127.75, 7,076.30 and 3,731.67 is: 5,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.75 : 7,076.30 = 3,731.67 : x
  2. Step 2: Convert to fraction form
    5,127.75/7,076.30 = 3,731.67/x
  3. Step 3: Cross multiply
    5,127.75x = 7,076.30 × 3,731.67
  4. Step 4: Simplify right side
    5,127.75x = 26,406,397.76
  5. Step 5: Solve for x
    x = 26,406,397.76/5,127.75
  6. Step 6: Final answer
    x = 5,149.70

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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.