Home / 2,269.96-3,132.52-1,275.28

Finding the Fourth Proportional to 2,269.96, 3,132.52 and 1,275.28

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Solution

The fourth proportional to 2,269.96, 3,132.52 and 1,275.28 is: 1,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.96 : 3,132.52 = 1,275.28 : x
  2. Step 2: Convert to fraction form
    2,269.96/3,132.52 = 1,275.28/x
  3. Step 3: Cross multiply
    2,269.96x = 3,132.52 × 1,275.28
  4. Step 4: Simplify right side
    2,269.96x = 3,994,840.11
  5. Step 5: Solve for x
    x = 3,994,840.11/2,269.96
  6. Step 6: Final answer
    x = 1,759.87

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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.