Home / 2,126.68-2,934.40-1,242.52

Finding the Fourth Proportional to 2,126.68, 2,934.40 and 1,242.52

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Solution

The fourth proportional to 2,126.68, 2,934.40 and 1,242.52 is: 1,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.68 : 2,934.40 = 1,242.52 : x
  2. Step 2: Convert to fraction form
    2,126.68/2,934.40 = 1,242.52/x
  3. Step 3: Cross multiply
    2,126.68x = 2,934.40 × 1,242.52
  4. Step 4: Simplify right side
    2,126.68x = 3,646,050.69
  5. Step 5: Solve for x
    x = 3,646,050.69/2,126.68
  6. Step 6: Final answer
    x = 1,714.43

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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.