Home / 2,612.62-3,912.89-1,570.32

Finding the Fourth Proportional to 2,612.62, 3,912.89 and 1,570.32

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Solution

The fourth proportional to 2,612.62, 3,912.89 and 1,570.32 is: 2,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.62 : 3,912.89 = 1,570.32 : x
  2. Step 2: Convert to fraction form
    2,612.62/3,912.89 = 1,570.32/x
  3. Step 3: Cross multiply
    2,612.62x = 3,912.89 × 1,570.32
  4. Step 4: Simplify right side
    2,612.62x = 6,144,489.42
  5. Step 5: Solve for x
    x = 6,144,489.42/2,612.62
  6. Step 6: Final answer
    x = 2,351.85

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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.