Home / 2,812.32-4,220.30-1,426.82

Finding the Fourth Proportional to 2,812.32, 4,220.30 and 1,426.82

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Solution

The fourth proportional to 2,812.32, 4,220.30 and 1,426.82 is: 2,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.32 : 4,220.30 = 1,426.82 : x
  2. Step 2: Convert to fraction form
    2,812.32/4,220.30 = 1,426.82/x
  3. Step 3: Cross multiply
    2,812.32x = 4,220.30 × 1,426.82
  4. Step 4: Simplify right side
    2,812.32x = 6,021,608.45
  5. Step 5: Solve for x
    x = 6,021,608.45/2,812.32
  6. Step 6: Final answer
    x = 2,141.15

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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.