Home / 2,631.40-3,943.33-1,932.58

Finding the Fourth Proportional to 2,631.40, 3,943.33 and 1,932.58

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Solution

The fourth proportional to 2,631.40, 3,943.33 and 1,932.58 is: 2,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.40 : 3,943.33 = 1,932.58 : x
  2. Step 2: Convert to fraction form
    2,631.40/3,943.33 = 1,932.58/x
  3. Step 3: Cross multiply
    2,631.40x = 3,943.33 × 1,932.58
  4. Step 4: Simplify right side
    2,631.40x = 7,620,800.69
  5. Step 5: Solve for x
    x = 7,620,800.69/2,631.40
  6. Step 6: Final answer
    x = 2,896.10

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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.