Home / 1,548.21-2,136.48-849.57

Finding the Fourth Proportional to 1,548.21, 2,136.48 and 849.57

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Solution

The fourth proportional to 1,548.21, 2,136.48 and 849.57 is: 1,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.21 : 2,136.48 = 849.57 : x
  2. Step 2: Convert to fraction form
    1,548.21/2,136.48 = 849.57/x
  3. Step 3: Cross multiply
    1,548.21x = 2,136.48 × 849.57
  4. Step 4: Simplify right side
    1,548.21x = 1,815,089.31
  5. Step 5: Solve for x
    x = 1,815,089.31/1,548.21
  6. Step 6: Final answer
    x = 1,172.38

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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.