Home / 1,512.55-2,087.35-849.45

Finding the Fourth Proportional to 1,512.55, 2,087.35 and 849.45

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Solution

The fourth proportional to 1,512.55, 2,087.35 and 849.45 is: 1,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.55 : 2,087.35 = 849.45 : x
  2. Step 2: Convert to fraction form
    1,512.55/2,087.35 = 849.45/x
  3. Step 3: Cross multiply
    1,512.55x = 2,087.35 × 849.45
  4. Step 4: Simplify right side
    1,512.55x = 1,773,099.46
  5. Step 5: Solve for x
    x = 1,773,099.46/1,512.55
  6. Step 6: Final answer
    x = 1,172.26

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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.