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Finding the Fourth Proportional to 2,340.95, 3,512.07 and 697.55

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Solution

The fourth proportional to 2,340.95, 3,512.07 and 697.55 is: 1,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.95 : 3,512.07 = 697.55 : x
  2. Step 2: Convert to fraction form
    2,340.95/3,512.07 = 697.55/x
  3. Step 3: Cross multiply
    2,340.95x = 3,512.07 × 697.55
  4. Step 4: Simplify right side
    2,340.95x = 2,449,826.87
  5. Step 5: Solve for x
    x = 2,449,826.87/2,340.95
  6. Step 6: Final answer
    x = 1,046.51

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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.