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Finding the Fourth Proportional to 3,152.29, 4,728.25 and 1,396.79

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Solution

The fourth proportional to 3,152.29, 4,728.25 and 1,396.79 is: 2,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.29 : 4,728.25 = 1,396.79 : x
  2. Step 2: Convert to fraction form
    3,152.29/4,728.25 = 1,396.79/x
  3. Step 3: Cross multiply
    3,152.29x = 4,728.25 × 1,396.79
  4. Step 4: Simplify right side
    3,152.29x = 6,604,372.32
  5. Step 5: Solve for x
    x = 6,604,372.32/3,152.29
  6. Step 6: Final answer
    x = 2,095.10

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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.