Home / 1,805.61-2,492.19-1,142.49

Finding the Fourth Proportional to 1,805.61, 2,492.19 and 1,142.49

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Solution

The fourth proportional to 1,805.61, 2,492.19 and 1,142.49 is: 1,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.61 : 2,492.19 = 1,142.49 : x
  2. Step 2: Convert to fraction form
    1,805.61/2,492.19 = 1,142.49/x
  3. Step 3: Cross multiply
    1,805.61x = 2,492.19 × 1,142.49
  4. Step 4: Simplify right side
    1,805.61x = 2,847,302.15
  5. Step 5: Solve for x
    x = 2,847,302.15/1,805.61
  6. Step 6: Final answer
    x = 1,576.92

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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.