Home / 7,724.60-11,586.78-1,881.16

Finding the Fourth Proportional to 7,724.60, 11,586.78 and 1,881.16

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Solution

The fourth proportional to 7,724.60, 11,586.78 and 1,881.16 is: 2,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.60 : 11,586.78 = 1,881.16 : x
  2. Step 2: Convert to fraction form
    7,724.60/11,586.78 = 1,881.16/x
  3. Step 3: Cross multiply
    7,724.60x = 11,586.78 × 1,881.16
  4. Step 4: Simplify right side
    7,724.60x = 21,796,587.06
  5. Step 5: Solve for x
    x = 21,796,587.06/7,724.60
  6. Step 6: Final answer
    x = 2,821.71

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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.