Home / 1,512.47-2,087.37-849.49

Finding the Fourth Proportional to 1,512.47, 2,087.37 and 849.49

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Solution

The fourth proportional to 1,512.47, 2,087.37 and 849.49 is: 1,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.47 : 2,087.37 = 849.49 : x
  2. Step 2: Convert to fraction form
    1,512.47/2,087.37 = 849.49/x
  3. Step 3: Cross multiply
    1,512.47x = 2,087.37 × 849.49
  4. Step 4: Simplify right side
    1,512.47x = 1,773,194.72
  5. Step 5: Solve for x
    x = 1,773,194.72/1,512.47
  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.