Home / 1,818.65-2,508.98-1,155.33

Finding the Fourth Proportional to 1,818.65, 2,508.98 and 1,155.33

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Solution

The fourth proportional to 1,818.65, 2,508.98 and 1,155.33 is: 1,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.65 : 2,508.98 = 1,155.33 : x
  2. Step 2: Convert to fraction form
    1,818.65/2,508.98 = 1,155.33/x
  3. Step 3: Cross multiply
    1,818.65x = 2,508.98 × 1,155.33
  4. Step 4: Simplify right side
    1,818.65x = 2,898,694.09
  5. Step 5: Solve for x
    x = 2,898,694.09/1,818.65
  6. Step 6: Final answer
    x = 1,593.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.