Home / 1,964.12-2,946.27-1,865.70

Finding the Fourth Proportional to 1,964.12, 2,946.27 and 1,865.70

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Solution

The fourth proportional to 1,964.12, 2,946.27 and 1,865.70 is: 2,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.12 : 2,946.27 = 1,865.70 : x
  2. Step 2: Convert to fraction form
    1,964.12/2,946.27 = 1,865.70/x
  3. Step 3: Cross multiply
    1,964.12x = 2,946.27 × 1,865.70
  4. Step 4: Simplify right side
    1,964.12x = 5,496,862.94
  5. Step 5: Solve for x
    x = 5,496,862.94/1,964.12
  6. Step 6: Final answer
    x = 2,798.65

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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.