Home / 5,102.15-7,040.66-2,864.17

Finding the Fourth Proportional to 5,102.15, 7,040.66 and 2,864.17

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Solution

The fourth proportional to 5,102.15, 7,040.66 and 2,864.17 is: 3,952.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.15 : 7,040.66 = 2,864.17 : x
  2. Step 2: Convert to fraction form
    5,102.15/7,040.66 = 2,864.17/x
  3. Step 3: Cross multiply
    5,102.15x = 7,040.66 × 2,864.17
  4. Step 4: Simplify right side
    5,102.15x = 20,165,663.62
  5. Step 5: Solve for x
    x = 20,165,663.62/5,102.15
  6. Step 6: Final answer
    x = 3,952.39

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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.