Home / 1,718.33-2,372.45-1,129.86

Finding the Fourth Proportional to 1,718.33, 2,372.45 and 1,129.86

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Solution

The fourth proportional to 1,718.33, 2,372.45 and 1,129.86 is: 1,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.33 : 2,372.45 = 1,129.86 : x
  2. Step 2: Convert to fraction form
    1,718.33/2,372.45 = 1,129.86/x
  3. Step 3: Cross multiply
    1,718.33x = 2,372.45 × 1,129.86
  4. Step 4: Simplify right side
    1,718.33x = 2,680,530.71
  5. Step 5: Solve for x
    x = 2,680,530.71/1,718.33
  6. Step 6: Final answer
    x = 1,559.97

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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.