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Finding the Fourth Proportional to 1,872.40, 2,810.04 and 1,617.04

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Solution

The fourth proportional to 1,872.40, 2,810.04 and 1,617.04 is: 2,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.40 : 2,810.04 = 1,617.04 : x
  2. Step 2: Convert to fraction form
    1,872.40/2,810.04 = 1,617.04/x
  3. Step 3: Cross multiply
    1,872.40x = 2,810.04 × 1,617.04
  4. Step 4: Simplify right side
    1,872.40x = 4,543,947.08
  5. Step 5: Solve for x
    x = 4,543,947.08/1,872.40
  6. Step 6: Final answer
    x = 2,426.80

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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.