Home / 3,126.93-4,315.28-2,132.66

Finding the Fourth Proportional to 3,126.93, 4,315.28 and 2,132.66

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Solution

The fourth proportional to 3,126.93, 4,315.28 and 2,132.66 is: 2,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.93 : 4,315.28 = 2,132.66 : x
  2. Step 2: Convert to fraction form
    3,126.93/4,315.28 = 2,132.66/x
  3. Step 3: Cross multiply
    3,126.93x = 4,315.28 × 2,132.66
  4. Step 4: Simplify right side
    3,126.93x = 9,202,992.81
  5. Step 5: Solve for x
    x = 9,202,992.81/3,126.93
  6. Step 6: Final answer
    x = 2,943.14

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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.