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Finding the Fourth Proportional to 3,999.52, 5,970.52 and 3,176.65

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Solution

The fourth proportional to 3,999.52, 5,970.52 and 3,176.65 is: 4,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.52 : 5,970.52 = 3,176.65 : x
  2. Step 2: Convert to fraction form
    3,999.52/5,970.52 = 3,176.65/x
  3. Step 3: Cross multiply
    3,999.52x = 5,970.52 × 3,176.65
  4. Step 4: Simplify right side
    3,999.52x = 18,966,252.36
  5. Step 5: Solve for x
    x = 18,966,252.36/3,999.52
  6. Step 6: Final answer
    x = 4,742.13

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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.