Home / 4,990.14-6,885.81-2,894.67

Finding the Fourth Proportional to 4,990.14, 6,885.81 and 2,894.67

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Solution

The fourth proportional to 4,990.14, 6,885.81 and 2,894.67 is: 3,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.14 : 6,885.81 = 2,894.67 : x
  2. Step 2: Convert to fraction form
    4,990.14/6,885.81 = 2,894.67/x
  3. Step 3: Cross multiply
    4,990.14x = 6,885.81 × 2,894.67
  4. Step 4: Simplify right side
    4,990.14x = 19,932,147.63
  5. Step 5: Solve for x
    x = 19,932,147.63/4,990.14
  6. Step 6: Final answer
    x = 3,994.31

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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.