Home / 2,334.78-3,222.36-1,340.28

Finding the Fourth Proportional to 2,334.78, 3,222.36 and 1,340.28

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Solution

The fourth proportional to 2,334.78, 3,222.36 and 1,340.28 is: 1,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.78 : 3,222.36 = 1,340.28 : x
  2. Step 2: Convert to fraction form
    2,334.78/3,222.36 = 1,340.28/x
  3. Step 3: Cross multiply
    2,334.78x = 3,222.36 × 1,340.28
  4. Step 4: Simplify right side
    2,334.78x = 4,318,864.66
  5. Step 5: Solve for x
    x = 4,318,864.66/2,334.78
  6. Step 6: Final answer
    x = 1,849.80

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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.