Home / 3,894.02-5,374.76-2,216.40

Finding the Fourth Proportional to 3,894.02, 5,374.76 and 2,216.40

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Solution

The fourth proportional to 3,894.02, 5,374.76 and 2,216.40 is: 3,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.02 : 5,374.76 = 2,216.40 : x
  2. Step 2: Convert to fraction form
    3,894.02/5,374.76 = 2,216.40/x
  3. Step 3: Cross multiply
    3,894.02x = 5,374.76 × 2,216.40
  4. Step 4: Simplify right side
    3,894.02x = 11,912,618.06
  5. Step 5: Solve for x
    x = 11,912,618.06/3,894.02
  6. Step 6: Final answer
    x = 3,059.21

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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.