Home / 3,025.70-4,172.72-2,079.98

Finding the Fourth Proportional to 3,025.70, 4,172.72 and 2,079.98

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Solution

The fourth proportional to 3,025.70, 4,172.72 and 2,079.98 is: 2,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.70 : 4,172.72 = 2,079.98 : x
  2. Step 2: Convert to fraction form
    3,025.70/4,172.72 = 2,079.98/x
  3. Step 3: Cross multiply
    3,025.70x = 4,172.72 × 2,079.98
  4. Step 4: Simplify right side
    3,025.70x = 8,679,158.53
  5. Step 5: Solve for x
    x = 8,679,158.53/3,025.70
  6. Step 6: Final answer
    x = 2,868.48

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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.