Home / 2,816.32-3,877.44-2,318.11

Finding the Fourth Proportional to 2,816.32, 3,877.44 and 2,318.11

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Solution

The fourth proportional to 2,816.32, 3,877.44 and 2,318.11 is: 3,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.32 : 3,877.44 = 2,318.11 : x
  2. Step 2: Convert to fraction form
    2,816.32/3,877.44 = 2,318.11/x
  3. Step 3: Cross multiply
    2,816.32x = 3,877.44 × 2,318.11
  4. Step 4: Simplify right side
    2,816.32x = 8,988,332.44
  5. Step 5: Solve for x
    x = 8,988,332.44/2,816.32
  6. Step 6: Final answer
    x = 3,191.52

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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.