Home / 3,014.70-4,490.45-2,872.55

Finding the Fourth Proportional to 3,014.70, 4,490.45 and 2,872.55

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Solution

The fourth proportional to 3,014.70, 4,490.45 and 2,872.55 is: 4,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.70 : 4,490.45 = 2,872.55 : x
  2. Step 2: Convert to fraction form
    3,014.70/4,490.45 = 2,872.55/x
  3. Step 3: Cross multiply
    3,014.70x = 4,490.45 × 2,872.55
  4. Step 4: Simplify right side
    3,014.70x = 12,899,005.33
  5. Step 5: Solve for x
    x = 12,899,005.33/3,014.70
  6. Step 6: Final answer
    x = 4,278.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.