Home / 1,631.76-2,247.72-1,512.16

Finding the Fourth Proportional to 1,631.76, 2,247.72 and 1,512.16

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Solution

The fourth proportional to 1,631.76, 2,247.72 and 1,512.16 is: 2,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.76 : 2,247.72 = 1,512.16 : x
  2. Step 2: Convert to fraction form
    1,631.76/2,247.72 = 1,512.16/x
  3. Step 3: Cross multiply
    1,631.76x = 2,247.72 × 1,512.16
  4. Step 4: Simplify right side
    1,631.76x = 3,398,912.28
  5. Step 5: Solve for x
    x = 3,398,912.28/1,631.76
  6. Step 6: Final answer
    x = 2,082.97

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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.