Home / 7,217.62-10,828.47-2,777.32

Finding the Fourth Proportional to 7,217.62, 10,828.47 and 2,777.32

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Solution

The fourth proportional to 7,217.62, 10,828.47 and 2,777.32 is: 4,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.62 : 10,828.47 = 2,777.32 : x
  2. Step 2: Convert to fraction form
    7,217.62/10,828.47 = 2,777.32/x
  3. Step 3: Cross multiply
    7,217.62x = 10,828.47 × 2,777.32
  4. Step 4: Simplify right side
    7,217.62x = 30,074,112.41
  5. Step 5: Solve for x
    x = 30,074,112.41/7,217.62
  6. Step 6: Final answer
    x = 4,166.77

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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.