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Finding the Fourth Proportional to 2,960.10, 4,440.15 and 1,728.90

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Solution

The fourth proportional to 2,960.10, 4,440.15 and 1,728.90 is: 2,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.10 : 4,440.15 = 1,728.90 : x
  2. Step 2: Convert to fraction form
    2,960.10/4,440.15 = 1,728.90/x
  3. Step 3: Cross multiply
    2,960.10x = 4,440.15 × 1,728.90
  4. Step 4: Simplify right side
    2,960.10x = 7,676,575.34
  5. Step 5: Solve for x
    x = 7,676,575.34/2,960.10
  6. Step 6: Final answer
    x = 2,593.35

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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.