Home / 7,772.58-11,656.04-2,840.76

Finding the Fourth Proportional to 7,772.58, 11,656.04 and 2,840.76

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Solution

The fourth proportional to 7,772.58, 11,656.04 and 2,840.76 is: 4,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.58 : 11,656.04 = 2,840.76 : x
  2. Step 2: Convert to fraction form
    7,772.58/11,656.04 = 2,840.76/x
  3. Step 3: Cross multiply
    7,772.58x = 11,656.04 × 2,840.76
  4. Step 4: Simplify right side
    7,772.58x = 33,111,997.99
  5. Step 5: Solve for x
    x = 33,111,997.99/7,772.58
  6. Step 6: Final answer
    x = 4,260.10

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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.