Home / 7,865.77-11,799.75-2,670.25

Finding the Fourth Proportional to 7,865.77, 11,799.75 and 2,670.25

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Solution

The fourth proportional to 7,865.77, 11,799.75 and 2,670.25 is: 4,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.77 : 11,799.75 = 2,670.25 : x
  2. Step 2: Convert to fraction form
    7,865.77/11,799.75 = 2,670.25/x
  3. Step 3: Cross multiply
    7,865.77x = 11,799.75 × 2,670.25
  4. Step 4: Simplify right side
    7,865.77x = 31,508,282.44
  5. Step 5: Solve for x
    x = 31,508,282.44/7,865.77
  6. Step 6: Final answer
    x = 4,005.75

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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.