Home / 2,331.68-3,218.72-1,400

Finding the Fourth Proportional to 2,331.68, 3,218.72 and 1,400

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Solution

The fourth proportional to 2,331.68, 3,218.72 and 1,400 is: 1,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.68 : 3,218.72 = 1,400 : x
  2. Step 2: Convert to fraction form
    2,331.68/3,218.72 = 1,400/x
  3. Step 3: Cross multiply
    2,331.68x = 3,218.72 × 1,400
  4. Step 4: Simplify right side
    2,331.68x = 4,506,208
  5. Step 5: Solve for x
    x = 4,506,208/2,331.68
  6. Step 6: Final answer
    x = 1,932.60

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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.