Home / 2,912.08-4,018.05-1,732.92

Finding the Fourth Proportional to 2,912.08, 4,018.05 and 1,732.92

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Solution

The fourth proportional to 2,912.08, 4,018.05 and 1,732.92 is: 2,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.08 : 4,018.05 = 1,732.92 : x
  2. Step 2: Convert to fraction form
    2,912.08/4,018.05 = 1,732.92/x
  3. Step 3: Cross multiply
    2,912.08x = 4,018.05 × 1,732.92
  4. Step 4: Simplify right side
    2,912.08x = 6,962,959.21
  5. Step 5: Solve for x
    x = 6,962,959.21/2,912.08
  6. Step 6: Final answer
    x = 2,391.06

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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.