Home / 5,089.28-7,023.36-3,100.48

Finding the Fourth Proportional to 5,089.28, 7,023.36 and 3,100.48

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Solution

The fourth proportional to 5,089.28, 7,023.36 and 3,100.48 is: 4,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.28 : 7,023.36 = 3,100.48 : x
  2. Step 2: Convert to fraction form
    5,089.28/7,023.36 = 3,100.48/x
  3. Step 3: Cross multiply
    5,089.28x = 7,023.36 × 3,100.48
  4. Step 4: Simplify right side
    5,089.28x = 21,775,787.21
  5. Step 5: Solve for x
    x = 21,775,787.21/5,089.28
  6. Step 6: Final answer
    x = 4,278.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.