Home / 1,304.32-1,795.44-1,127.20

Finding the Fourth Proportional to 1,304.32, 1,795.44 and 1,127.20

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Solution

The fourth proportional to 1,304.32, 1,795.44 and 1,127.20 is: 1,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.32 : 1,795.44 = 1,127.20 : x
  2. Step 2: Convert to fraction form
    1,304.32/1,795.44 = 1,127.20/x
  3. Step 3: Cross multiply
    1,304.32x = 1,795.44 × 1,127.20
  4. Step 4: Simplify right side
    1,304.32x = 2,023,819.97
  5. Step 5: Solve for x
    x = 2,023,819.97/1,304.32
  6. Step 6: Final answer
    x = 1,551.63

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Half scale
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Double 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.