Home / 3,145.08-4,341.38-2,701.20

Finding the Fourth Proportional to 3,145.08, 4,341.38 and 2,701.20

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Solution

The fourth proportional to 3,145.08, 4,341.38 and 2,701.20 is: 3,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.08 : 4,341.38 = 2,701.20 : x
  2. Step 2: Convert to fraction form
    3,145.08/4,341.38 = 2,701.20/x
  3. Step 3: Cross multiply
    3,145.08x = 4,341.38 × 2,701.20
  4. Step 4: Simplify right side
    3,145.08x = 11,726,935.66
  5. Step 5: Solve for x
    x = 11,726,935.66/3,145.08
  6. Step 6: Final answer
    x = 3,728.66

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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.