Home / 5,207.08-7,185.70-2,849.20

Finding the Fourth Proportional to 5,207.08, 7,185.70 and 2,849.20

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Solution

The fourth proportional to 5,207.08, 7,185.70 and 2,849.20 is: 3,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.08 : 7,185.70 = 2,849.20 : x
  2. Step 2: Convert to fraction form
    5,207.08/7,185.70 = 2,849.20/x
  3. Step 3: Cross multiply
    5,207.08x = 7,185.70 × 2,849.20
  4. Step 4: Simplify right side
    5,207.08x = 20,473,496.44
  5. Step 5: Solve for x
    x = 20,473,496.44/5,207.08
  6. Step 6: Final answer
    x = 3,931.86

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1.5x scale

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.