Home / 2,447.20-3,374.34-2,315.92

Finding the Fourth Proportional to 2,447.20, 3,374.34 and 2,315.92

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Solution

The fourth proportional to 2,447.20, 3,374.34 and 2,315.92 is: 3,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.20 : 3,374.34 = 2,315.92 : x
  2. Step 2: Convert to fraction form
    2,447.20/3,374.34 = 2,315.92/x
  3. Step 3: Cross multiply
    2,447.20x = 3,374.34 × 2,315.92
  4. Step 4: Simplify right side
    2,447.20x = 7,814,701.49
  5. Step 5: Solve for x
    x = 7,814,701.49/2,447.20
  6. Step 6: Final answer
    x = 3,193.32

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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.