Home / 7,215.43-10,824.54-2,772.76

Finding the Fourth Proportional to 7,215.43, 10,824.54 and 2,772.76

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Solution

The fourth proportional to 7,215.43, 10,824.54 and 2,772.76 is: 4,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.43 : 10,824.54 = 2,772.76 : x
  2. Step 2: Convert to fraction form
    7,215.43/10,824.54 = 2,772.76/x
  3. Step 3: Cross multiply
    7,215.43x = 10,824.54 × 2,772.76
  4. Step 4: Simplify right side
    7,215.43x = 30,013,783.54
  5. Step 5: Solve for x
    x = 30,013,783.54/7,215.43
  6. Step 6: Final answer
    x = 4,159.67

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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.