Home / 2,318.18-3,199.23-1,530.86

Finding the Fourth Proportional to 2,318.18, 3,199.23 and 1,530.86

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Solution

The fourth proportional to 2,318.18, 3,199.23 and 1,530.86 is: 2,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.18 : 3,199.23 = 1,530.86 : x
  2. Step 2: Convert to fraction form
    2,318.18/3,199.23 = 1,530.86/x
  3. Step 3: Cross multiply
    2,318.18x = 3,199.23 × 1,530.86
  4. Step 4: Simplify right side
    2,318.18x = 4,897,557.24
  5. Step 5: Solve for x
    x = 4,897,557.24/2,318.18
  6. Step 6: Final answer
    x = 2,112.68

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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.