Home / 1,862.43-2,557.45-1,665.87

Finding the Fourth Proportional to 1,862.43, 2,557.45 and 1,665.87

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Solution

The fourth proportional to 1,862.43, 2,557.45 and 1,665.87 is: 2,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.43 : 2,557.45 = 1,665.87 : x
  2. Step 2: Convert to fraction form
    1,862.43/2,557.45 = 1,665.87/x
  3. Step 3: Cross multiply
    1,862.43x = 2,557.45 × 1,665.87
  4. Step 4: Simplify right side
    1,862.43x = 4,260,379.23
  5. Step 5: Solve for x
    x = 4,260,379.23/1,862.43
  6. Step 6: Final answer
    x = 2,287.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.