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Finding the Fourth Proportional to 4,990.50, 6,888.51 and 2,894.22

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Solution

The fourth proportional to 4,990.50, 6,888.51 and 2,894.22 is: 3,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.50 : 6,888.51 = 2,894.22 : x
  2. Step 2: Convert to fraction form
    4,990.50/6,888.51 = 2,894.22/x
  3. Step 3: Cross multiply
    4,990.50x = 6,888.51 × 2,894.22
  4. Step 4: Simplify right side
    4,990.50x = 19,936,863.41
  5. Step 5: Solve for x
    x = 19,936,863.41/4,990.50
  6. Step 6: Final answer
    x = 3,994.96

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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.