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Finding the Fourth Proportional to 5,398.88, 7,450.32 and 3,040.88

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Solution

The fourth proportional to 5,398.88, 7,450.32 and 3,040.88 is: 4,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.88 : 7,450.32 = 3,040.88 : x
  2. Step 2: Convert to fraction form
    5,398.88/7,450.32 = 3,040.88/x
  3. Step 3: Cross multiply
    5,398.88x = 7,450.32 × 3,040.88
  4. Step 4: Simplify right side
    5,398.88x = 22,655,529.08
  5. Step 5: Solve for x
    x = 22,655,529.08/5,398.88
  6. Step 6: Final answer
    x = 4,196.34

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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.