Home / 2,447.63-3,377.93-1,399.89

Finding the Fourth Proportional to 2,447.63, 3,377.93 and 1,399.89

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Solution

The fourth proportional to 2,447.63, 3,377.93 and 1,399.89 is: 1,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.63 : 3,377.93 = 1,399.89 : x
  2. Step 2: Convert to fraction form
    2,447.63/3,377.93 = 1,399.89/x
  3. Step 3: Cross multiply
    2,447.63x = 3,377.93 × 1,399.89
  4. Step 4: Simplify right side
    2,447.63x = 4,728,723.43
  5. Step 5: Solve for x
    x = 4,728,723.43/2,447.63
  6. Step 6: Final answer
    x = 1,931.96

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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.