Home / 1,548.08-2,136.48-849.50

Finding the Fourth Proportional to 1,548.08, 2,136.48 and 849.50

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Solution

The fourth proportional to 1,548.08, 2,136.48 and 849.50 is: 1,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.08 : 2,136.48 = 849.50 : x
  2. Step 2: Convert to fraction form
    1,548.08/2,136.48 = 849.50/x
  3. Step 3: Cross multiply
    1,548.08x = 2,136.48 × 849.50
  4. Step 4: Simplify right side
    1,548.08x = 1,814,939.76
  5. Step 5: Solve for x
    x = 1,814,939.76/1,548.08
  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.