Home / 1,548.26-2,136.55-885.10

Finding the Fourth Proportional to 1,548.26, 2,136.55 and 885.10

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Solution

The fourth proportional to 1,548.26, 2,136.55 and 885.10 is: 1,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.26 : 2,136.55 = 885.10 : x
  2. Step 2: Convert to fraction form
    1,548.26/2,136.55 = 885.10/x
  3. Step 3: Cross multiply
    1,548.26x = 2,136.55 × 885.10
  4. Step 4: Simplify right side
    1,548.26x = 1,891,067.01
  5. Step 5: Solve for x
    x = 1,891,067.01/1,548.26
  6. Step 6: Final answer
    x = 1,221.41

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Half scale
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Double scale
Find fourth proportional to 1,549.26, 2,137.93 and 886.10
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1.5x scale

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.