Home / 2,561.20-3,534.36-1,442.18

Finding the Fourth Proportional to 2,561.20, 3,534.36 and 1,442.18

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Solution

The fourth proportional to 2,561.20, 3,534.36 and 1,442.18 is: 1,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.20 : 3,534.36 = 1,442.18 : x
  2. Step 2: Convert to fraction form
    2,561.20/3,534.36 = 1,442.18/x
  3. Step 3: Cross multiply
    2,561.20x = 3,534.36 × 1,442.18
  4. Step 4: Simplify right side
    2,561.20x = 5,097,183.30
  5. Step 5: Solve for x
    x = 5,097,183.30/2,561.20
  6. Step 6: Final answer
    x = 1,990.15

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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.