Home / 5,690.20-7,852.46-3,172.29

Finding the Fourth Proportional to 5,690.20, 7,852.46 and 3,172.29

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Solution

The fourth proportional to 5,690.20, 7,852.46 and 3,172.29 is: 4,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.20 : 7,852.46 = 3,172.29 : x
  2. Step 2: Convert to fraction form
    5,690.20/7,852.46 = 3,172.29/x
  3. Step 3: Cross multiply
    5,690.20x = 7,852.46 × 3,172.29
  4. Step 4: Simplify right side
    5,690.20x = 24,910,264.47
  5. Step 5: Solve for x
    x = 24,910,264.47/5,690.20
  6. Step 6: Final answer
    x = 4,377.75

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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.