Home / 1,351.16-2,025.58-571.78

Finding the Fourth Proportional to 1,351.16, 2,025.58 and 571.78

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Solution

The fourth proportional to 1,351.16, 2,025.58 and 571.78 is: 857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.16 : 2,025.58 = 571.78 : x
  2. Step 2: Convert to fraction form
    1,351.16/2,025.58 = 571.78/x
  3. Step 3: Cross multiply
    1,351.16x = 2,025.58 × 571.78
  4. Step 4: Simplify right side
    1,351.16x = 1,158,186.13
  5. Step 5: Solve for x
    x = 1,158,186.13/1,351.16
  6. Step 6: Final answer
    x = 857.18

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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.