Home / 5,170.81-7,135.80-2,932.66

Finding the Fourth Proportional to 5,170.81, 7,135.80 and 2,932.66

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Solution

The fourth proportional to 5,170.81, 7,135.80 and 2,932.66 is: 4,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.81 : 7,135.80 = 2,932.66 : x
  2. Step 2: Convert to fraction form
    5,170.81/7,135.80 = 2,932.66/x
  3. Step 3: Cross multiply
    5,170.81x = 7,135.80 × 2,932.66
  4. Step 4: Simplify right side
    5,170.81x = 20,926,875.23
  5. Step 5: Solve for x
    x = 20,926,875.23/5,170.81
  6. Step 6: Final answer
    x = 4,047.12

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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.