Home / 4,986.08-6,880.32-2,889.92

Finding the Fourth Proportional to 4,986.08, 6,880.32 and 2,889.92

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Solution

The fourth proportional to 4,986.08, 6,880.32 and 2,889.92 is: 3,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.08 : 6,880.32 = 2,889.92 : x
  2. Step 2: Convert to fraction form
    4,986.08/6,880.32 = 2,889.92/x
  3. Step 3: Cross multiply
    4,986.08x = 6,880.32 × 2,889.92
  4. Step 4: Simplify right side
    4,986.08x = 19,883,574.37
  5. Step 5: Solve for x
    x = 19,883,574.37/4,986.08
  6. Step 6: Final answer
    x = 3,987.82

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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.