Home / 4,976.37-6,867.59-2,987.82

Finding the Fourth Proportional to 4,976.37, 6,867.59 and 2,987.82

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Solution

The fourth proportional to 4,976.37, 6,867.59 and 2,987.82 is: 4,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.37 : 6,867.59 = 2,987.82 : x
  2. Step 2: Convert to fraction form
    4,976.37/6,867.59 = 2,987.82/x
  3. Step 3: Cross multiply
    4,976.37x = 6,867.59 × 2,987.82
  4. Step 4: Simplify right side
    4,976.37x = 20,519,107.81
  5. Step 5: Solve for x
    x = 20,519,107.81/4,976.37
  6. Step 6: Final answer
    x = 4,123.31

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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.