Home / 3,116.75-4,301.21-1,719.59

Finding the Fourth Proportional to 3,116.75, 4,301.21 and 1,719.59

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Solution

The fourth proportional to 3,116.75, 4,301.21 and 1,719.59 is: 2,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.75 : 4,301.21 = 1,719.59 : x
  2. Step 2: Convert to fraction form
    3,116.75/4,301.21 = 1,719.59/x
  3. Step 3: Cross multiply
    3,116.75x = 4,301.21 × 1,719.59
  4. Step 4: Simplify right side
    3,116.75x = 7,396,309.11
  5. Step 5: Solve for x
    x = 7,396,309.11/3,116.75
  6. Step 6: Final answer
    x = 2,373.08

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1.5x scale

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.