Home / 1,318.15-1,976.22-537.56

Finding the Fourth Proportional to 1,318.15, 1,976.22 and 537.56

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Solution

The fourth proportional to 1,318.15, 1,976.22 and 537.56 is: 805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.15 : 1,976.22 = 537.56 : x
  2. Step 2: Convert to fraction form
    1,318.15/1,976.22 = 537.56/x
  3. Step 3: Cross multiply
    1,318.15x = 1,976.22 × 537.56
  4. Step 4: Simplify right side
    1,318.15x = 1,062,341.42
  5. Step 5: Solve for x
    x = 1,062,341.42/1,318.15
  6. Step 6: Final answer
    x = 805.93

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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.