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Finding the Fourth Proportional to 2,873.21, 4,310.13 and 2,288.21

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Solution

The fourth proportional to 2,873.21, 4,310.13 and 2,288.21 is: 3,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.21 : 4,310.13 = 2,288.21 : x
  2. Step 2: Convert to fraction form
    2,873.21/4,310.13 = 2,288.21/x
  3. Step 3: Cross multiply
    2,873.21x = 4,310.13 × 2,288.21
  4. Step 4: Simplify right side
    2,873.21x = 9,862,482.57
  5. Step 5: Solve for x
    x = 9,862,482.57/2,873.21
  6. Step 6: Final answer
    x = 3,432.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.