Home / 1,548.13-2,136.44-849.51

Finding the Fourth Proportional to 1,548.13, 2,136.44 and 849.51

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Solution

The fourth proportional to 1,548.13, 2,136.44 and 849.51 is: 1,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.13 : 2,136.44 = 849.51 : x
  2. Step 2: Convert to fraction form
    1,548.13/2,136.44 = 849.51/x
  3. Step 3: Cross multiply
    1,548.13x = 2,136.44 × 849.51
  4. Step 4: Simplify right side
    1,548.13x = 1,814,927.14
  5. Step 5: Solve for x
    x = 1,814,927.14/1,548.13
  6. Step 6: Final answer
    x = 1,172.34

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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.