Home / 1,827.72-2,521.35-1,118.97

Finding the Fourth Proportional to 1,827.72, 2,521.35 and 1,118.97

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Solution

The fourth proportional to 1,827.72, 2,521.35 and 1,118.97 is: 1,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.72 : 2,521.35 = 1,118.97 : x
  2. Step 2: Convert to fraction form
    1,827.72/2,521.35 = 1,118.97/x
  3. Step 3: Cross multiply
    1,827.72x = 2,521.35 × 1,118.97
  4. Step 4: Simplify right side
    1,827.72x = 2,821,315.01
  5. Step 5: Solve for x
    x = 2,821,315.01/1,827.72
  6. Step 6: Final answer
    x = 1,543.63

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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.