Home / 3,240.89-4,463.01-2,815.32

Finding the Fourth Proportional to 3,240.89, 4,463.01 and 2,815.32

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Solution

The fourth proportional to 3,240.89, 4,463.01 and 2,815.32 is: 3,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.89 : 4,463.01 = 2,815.32 : x
  2. Step 2: Convert to fraction form
    3,240.89/4,463.01 = 2,815.32/x
  3. Step 3: Cross multiply
    3,240.89x = 4,463.01 × 2,815.32
  4. Step 4: Simplify right side
    3,240.89x = 12,564,785.36
  5. Step 5: Solve for x
    x = 12,564,785.36/3,240.89
  6. Step 6: Final answer
    x = 3,876.96

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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.