Home / 3,117.11-4,301.58-1,719.86

Finding the Fourth Proportional to 3,117.11, 4,301.58 and 1,719.86

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Solution

The fourth proportional to 3,117.11, 4,301.58 and 1,719.86 is: 2,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.11 : 4,301.58 = 1,719.86 : x
  2. Step 2: Convert to fraction form
    3,117.11/4,301.58 = 1,719.86/x
  3. Step 3: Cross multiply
    3,117.11x = 4,301.58 × 1,719.86
  4. Step 4: Simplify right side
    3,117.11x = 7,398,115.38
  5. Step 5: Solve for x
    x = 7,398,115.38/3,117.11
  6. Step 6: Final answer
    x = 2,373.39

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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.