Home / 5,345.11-8,009.56-3,391.39

Finding the Fourth Proportional to 5,345.11, 8,009.56 and 3,391.39

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Solution

The fourth proportional to 5,345.11, 8,009.56 and 3,391.39 is: 5,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.11 : 8,009.56 = 3,391.39 : x
  2. Step 2: Convert to fraction form
    5,345.11/8,009.56 = 3,391.39/x
  3. Step 3: Cross multiply
    5,345.11x = 8,009.56 × 3,391.39
  4. Step 4: Simplify right side
    5,345.11x = 27,163,541.69
  5. Step 5: Solve for x
    x = 27,163,541.69/5,345.11
  6. Step 6: Final answer
    x = 5,081.94

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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.