Home / 1,630.37-2,248.38-1,256.75

Finding the Fourth Proportional to 1,630.37, 2,248.38 and 1,256.75

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Solution

The fourth proportional to 1,630.37, 2,248.38 and 1,256.75 is: 1,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.37 : 2,248.38 = 1,256.75 : x
  2. Step 2: Convert to fraction form
    1,630.37/2,248.38 = 1,256.75/x
  3. Step 3: Cross multiply
    1,630.37x = 2,248.38 × 1,256.75
  4. Step 4: Simplify right side
    1,630.37x = 2,825,640.32
  5. Step 5: Solve for x
    x = 2,825,640.32/1,630.37
  6. Step 6: Final answer
    x = 1,733.13

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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.