Home / 1,709.35-2,569.07-1,418.72

Finding the Fourth Proportional to 1,709.35, 2,569.07 and 1,418.72

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Solution

The fourth proportional to 1,709.35, 2,569.07 and 1,418.72 is: 2,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.35 : 2,569.07 = 1,418.72 : x
  2. Step 2: Convert to fraction form
    1,709.35/2,569.07 = 1,418.72/x
  3. Step 3: Cross multiply
    1,709.35x = 2,569.07 × 1,418.72
  4. Step 4: Simplify right side
    1,709.35x = 3,644,773.71
  5. Step 5: Solve for x
    x = 3,644,773.71/1,709.35
  6. Step 6: Final answer
    x = 2,132.25

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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.