Home / 1,125.20-1,544.51-998.08

Finding the Fourth Proportional to 1,125.20, 1,544.51 and 998.08

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Solution

The fourth proportional to 1,125.20, 1,544.51 and 998.08 is: 1,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.20 : 1,544.51 = 998.08 : x
  2. Step 2: Convert to fraction form
    1,125.20/1,544.51 = 998.08/x
  3. Step 3: Cross multiply
    1,125.20x = 1,544.51 × 998.08
  4. Step 4: Simplify right side
    1,125.20x = 1,541,539.43
  5. Step 5: Solve for x
    x = 1,541,539.43/1,125.20
  6. Step 6: Final answer
    x = 1,370.02

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.