Home / 2,823.10-4,234.65-1,728.70

Finding the Fourth Proportional to 2,823.10, 4,234.65 and 1,728.70

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Solution

The fourth proportional to 2,823.10, 4,234.65 and 1,728.70 is: 2,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.10 : 4,234.65 = 1,728.70 : x
  2. Step 2: Convert to fraction form
    2,823.10/4,234.65 = 1,728.70/x
  3. Step 3: Cross multiply
    2,823.10x = 4,234.65 × 1,728.70
  4. Step 4: Simplify right side
    2,823.10x = 7,320,439.46
  5. Step 5: Solve for x
    x = 7,320,439.46/2,823.10
  6. Step 6: Final answer
    x = 2,593.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.