Home / 1,182.09-1,630.55-849.99

Finding the Fourth Proportional to 1,182.09, 1,630.55 and 849.99

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Solution

The fourth proportional to 1,182.09, 1,630.55 and 849.99 is: 1,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.09 : 1,630.55 = 849.99 : x
  2. Step 2: Convert to fraction form
    1,182.09/1,630.55 = 849.99/x
  3. Step 3: Cross multiply
    1,182.09x = 1,630.55 × 849.99
  4. Step 4: Simplify right side
    1,182.09x = 1,385,946.94
  5. Step 5: Solve for x
    x = 1,385,946.94/1,182.09
  6. Step 6: Final answer
    x = 1,172.45

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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.