Home / 3,119.97-4,680.15-1,040.10

Finding the Fourth Proportional to 3,119.97, 4,680.15 and 1,040.10

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Solution

The fourth proportional to 3,119.97, 4,680.15 and 1,040.10 is: 1,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.97 : 4,680.15 = 1,040.10 : x
  2. Step 2: Convert to fraction form
    3,119.97/4,680.15 = 1,040.10/x
  3. Step 3: Cross multiply
    3,119.97x = 4,680.15 × 1,040.10
  4. Step 4: Simplify right side
    3,119.97x = 4,867,824.02
  5. Step 5: Solve for x
    x = 4,867,824.02/3,119.97
  6. Step 6: Final answer
    x = 1,560.22

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Double scale
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1.5x scale

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.