Home / 7,087.15-10,630.77-3,388.51

Finding the Fourth Proportional to 7,087.15, 10,630.77 and 3,388.51

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Solution

The fourth proportional to 7,087.15, 10,630.77 and 3,388.51 is: 5,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.15 : 10,630.77 = 3,388.51 : x
  2. Step 2: Convert to fraction form
    7,087.15/10,630.77 = 3,388.51/x
  3. Step 3: Cross multiply
    7,087.15x = 10,630.77 × 3,388.51
  4. Step 4: Simplify right side
    7,087.15x = 36,022,470.45
  5. Step 5: Solve for x
    x = 36,022,470.45/7,087.15
  6. Step 6: Final answer
    x = 5,082.79

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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.