Home / 7,449.65-11,161.34-3,931.90

Finding the Fourth Proportional to 7,449.65, 11,161.34 and 3,931.90

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Solution

The fourth proportional to 7,449.65, 11,161.34 and 3,931.90 is: 5,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.65 : 11,161.34 = 3,931.90 : x
  2. Step 2: Convert to fraction form
    7,449.65/11,161.34 = 3,931.90/x
  3. Step 3: Cross multiply
    7,449.65x = 11,161.34 × 3,931.90
  4. Step 4: Simplify right side
    7,449.65x = 43,885,299.86
  5. Step 5: Solve for x
    x = 43,885,299.86/7,449.65
  6. Step 6: Final answer
    x = 5,890.92

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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.