Home / 2,322.17-3,478.85-1,280.61

Finding the Fourth Proportional to 2,322.17, 3,478.85 and 1,280.61

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Solution

The fourth proportional to 2,322.17, 3,478.85 and 1,280.61 is: 1,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.17 : 3,478.85 = 1,280.61 : x
  2. Step 2: Convert to fraction form
    2,322.17/3,478.85 = 1,280.61/x
  3. Step 3: Cross multiply
    2,322.17x = 3,478.85 × 1,280.61
  4. Step 4: Simplify right side
    2,322.17x = 4,455,048.50
  5. Step 5: Solve for x
    x = 4,455,048.50/2,322.17
  6. Step 6: Final answer
    x = 1,918.49

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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.