Home / 1,549.26-2,137.98-841.09

Finding the Fourth Proportional to 1,549.26, 2,137.98 and 841.09

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Solution

The fourth proportional to 1,549.26, 2,137.98 and 841.09 is: 1,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.26 : 2,137.98 = 841.09 : x
  2. Step 2: Convert to fraction form
    1,549.26/2,137.98 = 841.09/x
  3. Step 3: Cross multiply
    1,549.26x = 2,137.98 × 841.09
  4. Step 4: Simplify right side
    1,549.26x = 1,798,233.60
  5. Step 5: Solve for x
    x = 1,798,233.60/1,549.26
  6. Step 6: Final answer
    x = 1,160.70

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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.