Home / 1,617.60-2,232.48-1,020.96

Finding the Fourth Proportional to 1,617.60, 2,232.48 and 1,020.96

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Solution

The fourth proportional to 1,617.60, 2,232.48 and 1,020.96 is: 1,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.60 : 2,232.48 = 1,020.96 : x
  2. Step 2: Convert to fraction form
    1,617.60/2,232.48 = 1,020.96/x
  3. Step 3: Cross multiply
    1,617.60x = 2,232.48 × 1,020.96
  4. Step 4: Simplify right side
    1,617.60x = 2,279,272.78
  5. Step 5: Solve for x
    x = 2,279,272.78/1,617.60
  6. Step 6: Final answer
    x = 1,409.05

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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.