Home / 2,378.34-3,568.57-1,281.43

Finding the Fourth Proportional to 2,378.34, 3,568.57 and 1,281.43

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Solution

The fourth proportional to 2,378.34, 3,568.57 and 1,281.43 is: 1,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.34 : 3,568.57 = 1,281.43 : x
  2. Step 2: Convert to fraction form
    2,378.34/3,568.57 = 1,281.43/x
  3. Step 3: Cross multiply
    2,378.34x = 3,568.57 × 1,281.43
  4. Step 4: Simplify right side
    2,378.34x = 4,572,860.53
  5. Step 5: Solve for x
    x = 4,572,860.53/2,378.34
  6. Step 6: Final answer
    x = 1,922.71

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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.