Home / 2,612.54-3,606.99-1,912.70

Finding the Fourth Proportional to 2,612.54, 3,606.99 and 1,912.70

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Solution

The fourth proportional to 2,612.54, 3,606.99 and 1,912.70 is: 2,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.54 : 3,606.99 = 1,912.70 : x
  2. Step 2: Convert to fraction form
    2,612.54/3,606.99 = 1,912.70/x
  3. Step 3: Cross multiply
    2,612.54x = 3,606.99 × 1,912.70
  4. Step 4: Simplify right side
    2,612.54x = 6,899,089.77
  5. Step 5: Solve for x
    x = 6,899,089.77/2,612.54
  6. Step 6: Final answer
    x = 2,640.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.