Home / 4,976.12-6,866.52-2,986.76

Finding the Fourth Proportional to 4,976.12, 6,866.52 and 2,986.76

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Solution

The fourth proportional to 4,976.12, 6,866.52 and 2,986.76 is: 4,121.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.12 : 6,866.52 = 2,986.76 : x
  2. Step 2: Convert to fraction form
    4,976.12/6,866.52 = 2,986.76/x
  3. Step 3: Cross multiply
    4,976.12x = 6,866.52 × 2,986.76
  4. Step 4: Simplify right side
    4,976.12x = 20,508,647.28
  5. Step 5: Solve for x
    x = 20,508,647.28/4,976.12
  6. Step 6: Final answer
    x = 4,121.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.