Home / 1,548.03-2,136.54-885.09

Finding the Fourth Proportional to 1,548.03, 2,136.54 and 885.09

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Solution

The fourth proportional to 1,548.03, 2,136.54 and 885.09 is: 1,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.03 : 2,136.54 = 885.09 : x
  2. Step 2: Convert to fraction form
    1,548.03/2,136.54 = 885.09/x
  3. Step 3: Cross multiply
    1,548.03x = 2,136.54 × 885.09
  4. Step 4: Simplify right side
    1,548.03x = 1,891,030.19
  5. Step 5: Solve for x
    x = 1,891,030.19/1,548.03
  6. Step 6: Final answer
    x = 1,221.57

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Double scale
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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.