Home / 4,991.32-6,887.96-2,976.12

Finding the Fourth Proportional to 4,991.32, 6,887.96 and 2,976.12

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Solution

The fourth proportional to 4,991.32, 6,887.96 and 2,976.12 is: 4,107.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.32 : 6,887.96 = 2,976.12 : x
  2. Step 2: Convert to fraction form
    4,991.32/6,887.96 = 2,976.12/x
  3. Step 3: Cross multiply
    4,991.32x = 6,887.96 × 2,976.12
  4. Step 4: Simplify right side
    4,991.32x = 20,499,395.52
  5. Step 5: Solve for x
    x = 20,499,395.52/4,991.32
  6. Step 6: Final answer
    x = 4,107.01

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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.