Home / 2,447.64-3,378.33-1,400.31

Finding the Fourth Proportional to 2,447.64, 3,378.33 and 1,400.31

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Solution

The fourth proportional to 2,447.64, 3,378.33 and 1,400.31 is: 1,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.64 : 3,378.33 = 1,400.31 : x
  2. Step 2: Convert to fraction form
    2,447.64/3,378.33 = 1,400.31/x
  3. Step 3: Cross multiply
    2,447.64x = 3,378.33 × 1,400.31
  4. Step 4: Simplify right side
    2,447.64x = 4,730,709.28
  5. Step 5: Solve for x
    x = 4,730,709.28/2,447.64
  6. Step 6: Final answer
    x = 1,932.76

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1.5x scale

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.