Home / 1,548.23-2,136.57-849.61

Finding the Fourth Proportional to 1,548.23, 2,136.57 and 849.61

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Solution

The fourth proportional to 1,548.23, 2,136.57 and 849.61 is: 1,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.23 : 2,136.57 = 849.61 : x
  2. Step 2: Convert to fraction form
    1,548.23/2,136.57 = 849.61/x
  3. Step 3: Cross multiply
    1,548.23x = 2,136.57 × 849.61
  4. Step 4: Simplify right side
    1,548.23x = 1,815,240.55
  5. Step 5: Solve for x
    x = 1,815,240.55/1,548.23
  6. Step 6: Final answer
    x = 1,172.46

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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.