Home / 2,908.61-4,341.81-2,691.78

Finding the Fourth Proportional to 2,908.61, 4,341.81 and 2,691.78

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Solution

The fourth proportional to 2,908.61, 4,341.81 and 2,691.78 is: 4,018.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.61 : 4,341.81 = 2,691.78 : x
  2. Step 2: Convert to fraction form
    2,908.61/4,341.81 = 2,691.78/x
  3. Step 3: Cross multiply
    2,908.61x = 4,341.81 × 2,691.78
  4. Step 4: Simplify right side
    2,908.61x = 11,687,197.32
  5. Step 5: Solve for x
    x = 11,687,197.32/2,908.61
  6. Step 6: Final answer
    x = 4,018.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.