Home / 3,280.86-4,527.20-1,864.04

Finding the Fourth Proportional to 3,280.86, 4,527.20 and 1,864.04

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Solution

The fourth proportional to 3,280.86, 4,527.20 and 1,864.04 is: 2,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.86 : 4,527.20 = 1,864.04 : x
  2. Step 2: Convert to fraction form
    3,280.86/4,527.20 = 1,864.04/x
  3. Step 3: Cross multiply
    3,280.86x = 4,527.20 × 1,864.04
  4. Step 4: Simplify right side
    3,280.86x = 8,438,881.89
  5. Step 5: Solve for x
    x = 8,438,881.89/3,280.86
  6. Step 6: Final answer
    x = 2,572.16

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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.