Home / 2,332.68-3,219.12-1,284.78

Finding the Fourth Proportional to 2,332.68, 3,219.12 and 1,284.78

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Solution

The fourth proportional to 2,332.68, 3,219.12 and 1,284.78 is: 1,773.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.68 : 3,219.12 = 1,284.78 : x
  2. Step 2: Convert to fraction form
    2,332.68/3,219.12 = 1,284.78/x
  3. Step 3: Cross multiply
    2,332.68x = 3,219.12 × 1,284.78
  4. Step 4: Simplify right side
    2,332.68x = 4,135,860.99
  5. Step 5: Solve for x
    x = 4,135,860.99/2,332.68
  6. Step 6: Final answer
    x = 1,773.01

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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.