Home / 2,269.60-3,132.64-1,386

Finding the Fourth Proportional to 2,269.60, 3,132.64 and 1,386

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Solution

The fourth proportional to 2,269.60, 3,132.64 and 1,386 is: 1,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.60 : 3,132.64 = 1,386 : x
  2. Step 2: Convert to fraction form
    2,269.60/3,132.64 = 1,386/x
  3. Step 3: Cross multiply
    2,269.60x = 3,132.64 × 1,386
  4. Step 4: Simplify right side
    2,269.60x = 4,341,839.04
  5. Step 5: Solve for x
    x = 4,341,839.04/2,269.60
  6. Step 6: Final answer
    x = 1,913.04

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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.