Home / 1,635.12-2,255.18-1,302.75

Finding the Fourth Proportional to 1,635.12, 2,255.18 and 1,302.75

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Solution

The fourth proportional to 1,635.12, 2,255.18 and 1,302.75 is: 1,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.12 : 2,255.18 = 1,302.75 : x
  2. Step 2: Convert to fraction form
    1,635.12/2,255.18 = 1,302.75/x
  3. Step 3: Cross multiply
    1,635.12x = 2,255.18 × 1,302.75
  4. Step 4: Simplify right side
    1,635.12x = 2,937,929.23
  5. Step 5: Solve for x
    x = 2,937,929.23/1,635.12
  6. Step 6: Final answer
    x = 1,796.77

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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.