Home / 3,747.12-5,646.08-3,112.08

Finding the Fourth Proportional to 3,747.12, 5,646.08 and 3,112.08

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Solution

The fourth proportional to 3,747.12, 5,646.08 and 3,112.08 is: 4,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.12 : 5,646.08 = 3,112.08 : x
  2. Step 2: Convert to fraction form
    3,747.12/5,646.08 = 3,112.08/x
  3. Step 3: Cross multiply
    3,747.12x = 5,646.08 × 3,112.08
  4. Step 4: Simplify right side
    3,747.12x = 17,571,052.65
  5. Step 5: Solve for x
    x = 17,571,052.65/3,747.12
  6. Step 6: Final answer
    x = 4,689.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.