Home / 7,777.19-11,664.77-2,230.31

Finding the Fourth Proportional to 7,777.19, 11,664.77 and 2,230.31

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Solution

The fourth proportional to 7,777.19, 11,664.77 and 2,230.31 is: 3,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.19 : 11,664.77 = 2,230.31 : x
  2. Step 2: Convert to fraction form
    7,777.19/11,664.77 = 2,230.31/x
  3. Step 3: Cross multiply
    7,777.19x = 11,664.77 × 2,230.31
  4. Step 4: Simplify right side
    7,777.19x = 26,015,983.70
  5. Step 5: Solve for x
    x = 26,015,983.70/7,777.19
  6. Step 6: Final answer
    x = 3,345.17

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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.