Home / 5,129.76-7,701.12-4,365.12

Finding the Fourth Proportional to 5,129.76, 7,701.12 and 4,365.12

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Solution

The fourth proportional to 5,129.76, 7,701.12 and 4,365.12 is: 6,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.76 : 7,701.12 = 4,365.12 : x
  2. Step 2: Convert to fraction form
    5,129.76/7,701.12 = 4,365.12/x
  3. Step 3: Cross multiply
    5,129.76x = 7,701.12 × 4,365.12
  4. Step 4: Simplify right side
    5,129.76x = 33,616,312.93
  5. Step 5: Solve for x
    x = 33,616,312.93/5,129.76
  6. Step 6: Final answer
    x = 6,553.19

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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.