Home / 3,894.24-5,374.20-2,125.74

Finding the Fourth Proportional to 3,894.24, 5,374.20 and 2,125.74

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Solution

The fourth proportional to 3,894.24, 5,374.20 and 2,125.74 is: 2,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.24 : 5,374.20 = 2,125.74 : x
  2. Step 2: Convert to fraction form
    3,894.24/5,374.20 = 2,125.74/x
  3. Step 3: Cross multiply
    3,894.24x = 5,374.20 × 2,125.74
  4. Step 4: Simplify right side
    3,894.24x = 11,424,151.91
  5. Step 5: Solve for x
    x = 11,424,151.91/3,894.24
  6. Step 6: Final answer
    x = 2,933.60

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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.