Home / 4,985.46-6,872.49-4,099.77

Finding the Fourth Proportional to 4,985.46, 6,872.49 and 4,099.77

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Solution

The fourth proportional to 4,985.46, 6,872.49 and 4,099.77 is: 5,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.46 : 6,872.49 = 4,099.77 : x
  2. Step 2: Convert to fraction form
    4,985.46/6,872.49 = 4,099.77/x
  3. Step 3: Cross multiply
    4,985.46x = 6,872.49 × 4,099.77
  4. Step 4: Simplify right side
    4,985.46x = 28,175,628.33
  5. Step 5: Solve for x
    x = 28,175,628.33/4,985.46
  6. Step 6: Final answer
    x = 5,651.56

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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.