Home / 2,661.08-3,981.90-1,565.96

Finding the Fourth Proportional to 2,661.08, 3,981.90 and 1,565.96

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Solution

The fourth proportional to 2,661.08, 3,981.90 and 1,565.96 is: 2,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.08 : 3,981.90 = 1,565.96 : x
  2. Step 2: Convert to fraction form
    2,661.08/3,981.90 = 1,565.96/x
  3. Step 3: Cross multiply
    2,661.08x = 3,981.90 × 1,565.96
  4. Step 4: Simplify right side
    2,661.08x = 6,235,496.12
  5. Step 5: Solve for x
    x = 6,235,496.12/2,661.08
  6. Step 6: Final answer
    x = 2,343.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.