Home / 2,931.80-4,400.73-1,964.66

Finding the Fourth Proportional to 2,931.80, 4,400.73 and 1,964.66

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Solution

The fourth proportional to 2,931.80, 4,400.73 and 1,964.66 is: 2,949.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.80 : 4,400.73 = 1,964.66 : x
  2. Step 2: Convert to fraction form
    2,931.80/4,400.73 = 1,964.66/x
  3. Step 3: Cross multiply
    2,931.80x = 4,400.73 × 1,964.66
  4. Step 4: Simplify right side
    2,931.80x = 8,645,916.20
  5. Step 5: Solve for x
    x = 8,645,916.20/2,931.80
  6. Step 6: Final answer
    x = 2,949.02

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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.