Home / 2,931.98-4,401.01-1,964.84

Finding the Fourth Proportional to 2,931.98, 4,401.01 and 1,964.84

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Solution

The fourth proportional to 2,931.98, 4,401.01 and 1,964.84 is: 2,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.98 : 4,401.01 = 1,964.84 : x
  2. Step 2: Convert to fraction form
    2,931.98/4,401.01 = 1,964.84/x
  3. Step 3: Cross multiply
    2,931.98x = 4,401.01 × 1,964.84
  4. Step 4: Simplify right side
    2,931.98x = 8,647,293.95
  5. Step 5: Solve for x
    x = 8,647,293.95/2,931.98
  6. Step 6: Final answer
    x = 2,949.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.