Home / 1,417.33-2,125.20-1,126.69

Finding the Fourth Proportional to 1,417.33, 2,125.20 and 1,126.69

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Solution

The fourth proportional to 1,417.33, 2,125.20 and 1,126.69 is: 1,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.33 : 2,125.20 = 1,126.69 : x
  2. Step 2: Convert to fraction form
    1,417.33/2,125.20 = 1,126.69/x
  3. Step 3: Cross multiply
    1,417.33x = 2,125.20 × 1,126.69
  4. Step 4: Simplify right side
    1,417.33x = 2,394,441.59
  5. Step 5: Solve for x
    x = 2,394,441.59/1,417.33
  6. Step 6: Final answer
    x = 1,689.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.