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Finding the Fourth Proportional to 1,798.75, 2,480.88 and 1,135.36

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Solution

The fourth proportional to 1,798.75, 2,480.88 and 1,135.36 is: 1,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.75 : 2,480.88 = 1,135.36 : x
  2. Step 2: Convert to fraction form
    1,798.75/2,480.88 = 1,135.36/x
  3. Step 3: Cross multiply
    1,798.75x = 2,480.88 × 1,135.36
  4. Step 4: Simplify right side
    1,798.75x = 2,816,691.92
  5. Step 5: Solve for x
    x = 2,816,691.92/1,798.75
  6. Step 6: Final answer
    x = 1,565.92

Related Problems

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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.