Home / 5,425.71-8,138.63-1,727.93

Finding the Fourth Proportional to 5,425.71, 8,138.63 and 1,727.93

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Solution

The fourth proportional to 5,425.71, 8,138.63 and 1,727.93 is: 2,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.71 : 8,138.63 = 1,727.93 : x
  2. Step 2: Convert to fraction form
    5,425.71/8,138.63 = 1,727.93/x
  3. Step 3: Cross multiply
    5,425.71x = 8,138.63 × 1,727.93
  4. Step 4: Simplify right side
    5,425.71x = 14,062,946.56
  5. Step 5: Solve for x
    x = 14,062,946.56/5,425.71
  6. Step 6: Final answer
    x = 2,591.91

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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.