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Finding the Fourth Proportional to 2,361.50, 3,542.38 and 695.80

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Solution

The fourth proportional to 2,361.50, 3,542.38 and 695.80 is: 1,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.50 : 3,542.38 = 695.80 : x
  2. Step 2: Convert to fraction form
    2,361.50/3,542.38 = 695.80/x
  3. Step 3: Cross multiply
    2,361.50x = 3,542.38 × 695.80
  4. Step 4: Simplify right side
    2,361.50x = 2,464,777.41
  5. Step 5: Solve for x
    x = 2,464,777.41/2,361.50
  6. Step 6: Final answer
    x = 1,043.74

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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.