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Finding the Fourth Proportional to 2,976.04, 4,425.11 and 2,851.48

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Solution

The fourth proportional to 2,976.04, 4,425.11 and 2,851.48 is: 4,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.04 : 4,425.11 = 2,851.48 : x
  2. Step 2: Convert to fraction form
    2,976.04/4,425.11 = 2,851.48/x
  3. Step 3: Cross multiply
    2,976.04x = 4,425.11 × 2,851.48
  4. Step 4: Simplify right side
    2,976.04x = 12,618,089.74
  5. Step 5: Solve for x
    x = 12,618,089.74/2,976.04
  6. Step 6: Final answer
    x = 4,239.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.