Home / 7,331.18-10,972.71-3,994.34

Finding the Fourth Proportional to 7,331.18, 10,972.71 and 3,994.34

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Solution

The fourth proportional to 7,331.18, 10,972.71 and 3,994.34 is: 5,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.18 : 10,972.71 = 3,994.34 : x
  2. Step 2: Convert to fraction form
    7,331.18/10,972.71 = 3,994.34/x
  3. Step 3: Cross multiply
    7,331.18x = 10,972.71 × 3,994.34
  4. Step 4: Simplify right side
    7,331.18x = 43,828,679.60
  5. Step 5: Solve for x
    x = 43,828,679.60/7,331.18
  6. Step 6: Final answer
    x = 5,978.40

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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.