Home / 7,772.56-11,656.10-2,224.40

Finding the Fourth Proportional to 7,772.56, 11,656.10 and 2,224.40

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Solution

The fourth proportional to 7,772.56, 11,656.10 and 2,224.40 is: 3,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.56 : 11,656.10 = 2,224.40 : x
  2. Step 2: Convert to fraction form
    7,772.56/11,656.10 = 2,224.40/x
  3. Step 3: Cross multiply
    7,772.56x = 11,656.10 × 2,224.40
  4. Step 4: Simplify right side
    7,772.56x = 25,927,828.84
  5. Step 5: Solve for x
    x = 25,927,828.84/7,772.56
  6. Step 6: Final answer
    x = 3,335.82

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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.