Home / 3,719.10-5,132.43-2,040.40

Finding the Fourth Proportional to 3,719.10, 5,132.43 and 2,040.40

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Solution

The fourth proportional to 3,719.10, 5,132.43 and 2,040.40 is: 2,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.10 : 5,132.43 = 2,040.40 : x
  2. Step 2: Convert to fraction form
    3,719.10/5,132.43 = 2,040.40/x
  3. Step 3: Cross multiply
    3,719.10x = 5,132.43 × 2,040.40
  4. Step 4: Simplify right side
    3,719.10x = 10,472,210.17
  5. Step 5: Solve for x
    x = 10,472,210.17/3,719.10
  6. Step 6: Final answer
    x = 2,815.79

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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.