Home / 4,989.36-6,885.66-2,999.88

Finding the Fourth Proportional to 4,989.36, 6,885.66 and 2,999.88

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Solution

The fourth proportional to 4,989.36, 6,885.66 and 2,999.88 is: 4,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.36 : 6,885.66 = 2,999.88 : x
  2. Step 2: Convert to fraction form
    4,989.36/6,885.66 = 2,999.88/x
  3. Step 3: Cross multiply
    4,989.36x = 6,885.66 × 2,999.88
  4. Step 4: Simplify right side
    4,989.36x = 20,656,153.72
  5. Step 5: Solve for x
    x = 20,656,153.72/4,989.36
  6. Step 6: Final answer
    x = 4,140.04

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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.