Home / 1,875.44-2,815.02-1,387.04

Finding the Fourth Proportional to 1,875.44, 2,815.02 and 1,387.04

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Solution

The fourth proportional to 1,875.44, 2,815.02 and 1,387.04 is: 2,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.44 : 2,815.02 = 1,387.04 : x
  2. Step 2: Convert to fraction form
    1,875.44/2,815.02 = 1,387.04/x
  3. Step 3: Cross multiply
    1,875.44x = 2,815.02 × 1,387.04
  4. Step 4: Simplify right side
    1,875.44x = 3,904,545.34
  5. Step 5: Solve for x
    x = 3,904,545.34/1,875.44
  6. Step 6: Final answer
    x = 2,081.94

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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.