Home / 3,117.29-4,301.87-1,720.04

Finding the Fourth Proportional to 3,117.29, 4,301.87 and 1,720.04

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Solution

The fourth proportional to 3,117.29, 4,301.87 and 1,720.04 is: 2,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.29 : 4,301.87 = 1,720.04 : x
  2. Step 2: Convert to fraction form
    3,117.29/4,301.87 = 1,720.04/x
  3. Step 3: Cross multiply
    3,117.29x = 4,301.87 × 1,720.04
  4. Step 4: Simplify right side
    3,117.29x = 7,399,388.47
  5. Step 5: Solve for x
    x = 7,399,388.47/3,117.29
  6. Step 6: Final answer
    x = 2,373.66

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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.