Home / 1,964.50-2,710.65-1,441.78

Finding the Fourth Proportional to 1,964.50, 2,710.65 and 1,441.78

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Solution

The fourth proportional to 1,964.50, 2,710.65 and 1,441.78 is: 1,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.50 : 2,710.65 = 1,441.78 : x
  2. Step 2: Convert to fraction form
    1,964.50/2,710.65 = 1,441.78/x
  3. Step 3: Cross multiply
    1,964.50x = 2,710.65 × 1,441.78
  4. Step 4: Simplify right side
    1,964.50x = 3,908,147.40
  5. Step 5: Solve for x
    x = 3,908,147.40/1,964.50
  6. Step 6: Final answer
    x = 1,989.39

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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.