Home / 5,122.28-7,684.56-1,837.76

Finding the Fourth Proportional to 5,122.28, 7,684.56 and 1,837.76

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Solution

The fourth proportional to 5,122.28, 7,684.56 and 1,837.76 is: 2,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.28 : 7,684.56 = 1,837.76 : x
  2. Step 2: Convert to fraction form
    5,122.28/7,684.56 = 1,837.76/x
  3. Step 3: Cross multiply
    5,122.28x = 7,684.56 × 1,837.76
  4. Step 4: Simplify right side
    5,122.28x = 14,122,376.99
  5. Step 5: Solve for x
    x = 14,122,376.99/5,122.28
  6. Step 6: Final answer
    x = 2,757.05

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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.