Home / 4,994.20-6,891.87-2,870.11

Finding the Fourth Proportional to 4,994.20, 6,891.87 and 2,870.11

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Solution

The fourth proportional to 4,994.20, 6,891.87 and 2,870.11 is: 3,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.20 : 6,891.87 = 2,870.11 : x
  2. Step 2: Convert to fraction form
    4,994.20/6,891.87 = 2,870.11/x
  3. Step 3: Cross multiply
    4,994.20x = 6,891.87 × 2,870.11
  4. Step 4: Simplify right side
    4,994.20x = 19,780,425.01
  5. Step 5: Solve for x
    x = 19,780,425.01/4,994.20
  6. Step 6: Final answer
    x = 3,960.68

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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.