Home / 3,655.31-5,040.96-3,126.17

Finding the Fourth Proportional to 3,655.31, 5,040.96 and 3,126.17

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Solution

The fourth proportional to 3,655.31, 5,040.96 and 3,126.17 is: 4,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.31 : 5,040.96 = 3,126.17 : x
  2. Step 2: Convert to fraction form
    3,655.31/5,040.96 = 3,126.17/x
  3. Step 3: Cross multiply
    3,655.31x = 5,040.96 × 3,126.17
  4. Step 4: Simplify right side
    3,655.31x = 15,758,897.92
  5. Step 5: Solve for x
    x = 15,758,897.92/3,655.31
  6. Step 6: Final answer
    x = 4,311.23

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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.