Home / 7,281.32-10,921.94-2,087.18

Finding the Fourth Proportional to 7,281.32, 10,921.94 and 2,087.18

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Solution

The fourth proportional to 7,281.32, 10,921.94 and 2,087.18 is: 3,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.32 : 10,921.94 = 2,087.18 : x
  2. Step 2: Convert to fraction form
    7,281.32/10,921.94 = 2,087.18/x
  3. Step 3: Cross multiply
    7,281.32x = 10,921.94 × 2,087.18
  4. Step 4: Simplify right side
    7,281.32x = 22,796,054.73
  5. Step 5: Solve for x
    x = 22,796,054.73/7,281.32
  6. Step 6: Final answer
    x = 3,130.76

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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.