Home / 5,155.65-7,111.19-3,242.03

Finding the Fourth Proportional to 5,155.65, 7,111.19 and 3,242.03

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Solution

The fourth proportional to 5,155.65, 7,111.19 and 3,242.03 is: 4,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.65 : 7,111.19 = 3,242.03 : x
  2. Step 2: Convert to fraction form
    5,155.65/7,111.19 = 3,242.03/x
  3. Step 3: Cross multiply
    5,155.65x = 7,111.19 × 3,242.03
  4. Step 4: Simplify right side
    5,155.65x = 23,054,663.86
  5. Step 5: Solve for x
    x = 23,054,663.86/5,155.65
  6. Step 6: Final answer
    x = 4,471.73

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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.