Home / 7,777.10-11,665.60-2,230.45

Finding the Fourth Proportional to 7,777.10, 11,665.60 and 2,230.45

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Solution

The fourth proportional to 7,777.10, 11,665.60 and 2,230.45 is: 3,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.10 : 11,665.60 = 2,230.45 : x
  2. Step 2: Convert to fraction form
    7,777.10/11,665.60 = 2,230.45/x
  3. Step 3: Cross multiply
    7,777.10x = 11,665.60 × 2,230.45
  4. Step 4: Simplify right side
    7,777.10x = 26,019,526.37
  5. Step 5: Solve for x
    x = 26,019,526.37/7,777.10
  6. Step 6: Final answer
    x = 3,345.66

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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.