Home / 5,706.25-7,874.80-3,188.47

Finding the Fourth Proportional to 5,706.25, 7,874.80 and 3,188.47

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Solution

The fourth proportional to 5,706.25, 7,874.80 and 3,188.47 is: 4,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,706.25 : 7,874.80 = 3,188.47 : x
  2. Step 2: Convert to fraction form
    5,706.25/7,874.80 = 3,188.47/x
  3. Step 3: Cross multiply
    5,706.25x = 7,874.80 × 3,188.47
  4. Step 4: Simplify right side
    5,706.25x = 25,108,563.56
  5. Step 5: Solve for x
    x = 25,108,563.56/5,706.25
  6. Step 6: Final answer
    x = 4,400.19

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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.