Home / 5,426.64-8,140.57-1,728.02

Finding the Fourth Proportional to 5,426.64, 8,140.57 and 1,728.02

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Solution

The fourth proportional to 5,426.64, 8,140.57 and 1,728.02 is: 2,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.64 : 8,140.57 = 1,728.02 : x
  2. Step 2: Convert to fraction form
    5,426.64/8,140.57 = 1,728.02/x
  3. Step 3: Cross multiply
    5,426.64x = 8,140.57 × 1,728.02
  4. Step 4: Simplify right side
    5,426.64x = 14,067,018.43
  5. Step 5: Solve for x
    x = 14,067,018.43/5,426.64
  6. Step 6: Final answer
    x = 2,592.21

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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.