Home / 2,269.19-3,132.02-1,385.74

Finding the Fourth Proportional to 2,269.19, 3,132.02 and 1,385.74

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Solution

The fourth proportional to 2,269.19, 3,132.02 and 1,385.74 is: 1,912.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.19 : 3,132.02 = 1,385.74 : x
  2. Step 2: Convert to fraction form
    2,269.19/3,132.02 = 1,385.74/x
  3. Step 3: Cross multiply
    2,269.19x = 3,132.02 × 1,385.74
  4. Step 4: Simplify right side
    2,269.19x = 4,340,165.39
  5. Step 5: Solve for x
    x = 4,340,165.39/2,269.19
  6. Step 6: Final answer
    x = 1,912.65

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Half scale
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1.5x scale

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.