Home / 1,964.40-2,947.14-1,554.90

Finding the Fourth Proportional to 1,964.40, 2,947.14 and 1,554.90

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Solution

The fourth proportional to 1,964.40, 2,947.14 and 1,554.90 is: 2,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.40 : 2,947.14 = 1,554.90 : x
  2. Step 2: Convert to fraction form
    1,964.40/2,947.14 = 1,554.90/x
  3. Step 3: Cross multiply
    1,964.40x = 2,947.14 × 1,554.90
  4. Step 4: Simplify right side
    1,964.40x = 4,582,507.99
  5. Step 5: Solve for x
    x = 4,582,507.99/1,964.40
  6. Step 6: Final answer
    x = 2,332.78

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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.