Home / 1,318.06-1,977.32-587.62

Finding the Fourth Proportional to 1,318.06, 1,977.32 and 587.62

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Solution

The fourth proportional to 1,318.06, 1,977.32 and 587.62 is: 881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.06 : 1,977.32 = 587.62 : x
  2. Step 2: Convert to fraction form
    1,318.06/1,977.32 = 587.62/x
  3. Step 3: Cross multiply
    1,318.06x = 1,977.32 × 587.62
  4. Step 4: Simplify right side
    1,318.06x = 1,161,912.78
  5. Step 5: Solve for x
    x = 1,161,912.78/1,318.06
  6. Step 6: Final answer
    x = 881.53

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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.