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Finding the Fourth Proportional to 3,254.87, 4,492.21 and 1,839.15

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Solution

The fourth proportional to 3,254.87, 4,492.21 and 1,839.15 is: 2,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.87 : 4,492.21 = 1,839.15 : x
  2. Step 2: Convert to fraction form
    3,254.87/4,492.21 = 1,839.15/x
  3. Step 3: Cross multiply
    3,254.87x = 4,492.21 × 1,839.15
  4. Step 4: Simplify right side
    3,254.87x = 8,261,848.02
  5. Step 5: Solve for x
    x = 8,261,848.02/3,254.87
  6. Step 6: Final answer
    x = 2,538.30

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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.