Home / 3,813.20-5,260.18-3,146.16

Finding the Fourth Proportional to 3,813.20, 5,260.18 and 3,146.16

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Solution

The fourth proportional to 3,813.20, 5,260.18 and 3,146.16 is: 4,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.20 : 5,260.18 = 3,146.16 : x
  2. Step 2: Convert to fraction form
    3,813.20/5,260.18 = 3,146.16/x
  3. Step 3: Cross multiply
    3,813.20x = 5,260.18 × 3,146.16
  4. Step 4: Simplify right side
    3,813.20x = 16,549,352.18
  5. Step 5: Solve for x
    x = 16,549,352.18/3,813.20
  6. Step 6: Final answer
    x = 4,340.02

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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.