Home / 7,278.60-10,908.45-3,374.70

Finding the Fourth Proportional to 7,278.60, 10,908.45 and 3,374.70

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Solution

The fourth proportional to 7,278.60, 10,908.45 and 3,374.70 is: 5,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.60 : 10,908.45 = 3,374.70 : x
  2. Step 2: Convert to fraction form
    7,278.60/10,908.45 = 3,374.70/x
  3. Step 3: Cross multiply
    7,278.60x = 10,908.45 × 3,374.70
  4. Step 4: Simplify right side
    7,278.60x = 36,812,746.22
  5. Step 5: Solve for x
    x = 36,812,746.22/7,278.60
  6. Step 6: Final answer
    x = 5,057.67

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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.