Home / 3,117.06-4,301.43-1,719.78

Finding the Fourth Proportional to 3,117.06, 4,301.43 and 1,719.78

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Solution

The fourth proportional to 3,117.06, 4,301.43 and 1,719.78 is: 2,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.06 : 4,301.43 = 1,719.78 : x
  2. Step 2: Convert to fraction form
    3,117.06/4,301.43 = 1,719.78/x
  3. Step 3: Cross multiply
    3,117.06x = 4,301.43 × 1,719.78
  4. Step 4: Simplify right side
    3,117.06x = 7,397,513.29
  5. Step 5: Solve for x
    x = 7,397,513.29/3,117.06
  6. Step 6: Final answer
    x = 2,373.23

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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.