Home / 1,426.56-2,140.10-452.43

Finding the Fourth Proportional to 1,426.56, 2,140.10 and 452.43

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Solution

The fourth proportional to 1,426.56, 2,140.10 and 452.43 is: 678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.56 : 2,140.10 = 452.43 : x
  2. Step 2: Convert to fraction form
    1,426.56/2,140.10 = 452.43/x
  3. Step 3: Cross multiply
    1,426.56x = 2,140.10 × 452.43
  4. Step 4: Simplify right side
    1,426.56x = 968,245.44
  5. Step 5: Solve for x
    x = 968,245.44/1,426.56
  6. Step 6: Final answer
    x = 678.73

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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.