Home / 7,210.92-9,953.58-4,227.72

Finding the Fourth Proportional to 7,210.92, 9,953.58 and 4,227.72

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Solution

The fourth proportional to 7,210.92, 9,953.58 and 4,227.72 is: 5,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.92 : 9,953.58 = 4,227.72 : x
  2. Step 2: Convert to fraction form
    7,210.92/9,953.58 = 4,227.72/x
  3. Step 3: Cross multiply
    7,210.92x = 9,953.58 × 4,227.72
  4. Step 4: Simplify right side
    7,210.92x = 42,080,949.24
  5. Step 5: Solve for x
    x = 42,080,949.24/7,210.92
  6. Step 6: Final answer
    x = 5,835.73

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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.