Home / 3,624.18-5,438.43-1,315.86

Finding the Fourth Proportional to 3,624.18, 5,438.43 and 1,315.86

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Solution

The fourth proportional to 3,624.18, 5,438.43 and 1,315.86 is: 1,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.18 : 5,438.43 = 1,315.86 : x
  2. Step 2: Convert to fraction form
    3,624.18/5,438.43 = 1,315.86/x
  3. Step 3: Cross multiply
    3,624.18x = 5,438.43 × 1,315.86
  4. Step 4: Simplify right side
    3,624.18x = 7,156,212.50
  5. Step 5: Solve for x
    x = 7,156,212.50/3,624.18
  6. Step 6: Final answer
    x = 1,974.57

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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.