Home / 1,025.80-1,539.66-441.16

Finding the Fourth Proportional to 1,025.80, 1,539.66 and 441.16

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Solution

The fourth proportional to 1,025.80, 1,539.66 and 441.16 is: 662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.80 : 1,539.66 = 441.16 : x
  2. Step 2: Convert to fraction form
    1,025.80/1,539.66 = 441.16/x
  3. Step 3: Cross multiply
    1,025.80x = 1,539.66 × 441.16
  4. Step 4: Simplify right side
    1,025.80x = 679,236.41
  5. Step 5: Solve for x
    x = 679,236.41/1,025.80
  6. Step 6: Final answer
    x = 662.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.