Home / 1,872.12-2,810.61-1,439.58

Finding the Fourth Proportional to 1,872.12, 2,810.61 and 1,439.58

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Solution

The fourth proportional to 1,872.12, 2,810.61 and 1,439.58 is: 2,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.12 : 2,810.61 = 1,439.58 : x
  2. Step 2: Convert to fraction form
    1,872.12/2,810.61 = 1,439.58/x
  3. Step 3: Cross multiply
    1,872.12x = 2,810.61 × 1,439.58
  4. Step 4: Simplify right side
    1,872.12x = 4,046,097.94
  5. Step 5: Solve for x
    x = 4,046,097.94/1,872.12
  6. Step 6: Final answer
    x = 2,161.24

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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.