Home / 2,849.28-3,932.64-1,964.16

Finding the Fourth Proportional to 2,849.28, 3,932.64 and 1,964.16

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Solution

The fourth proportional to 2,849.28, 3,932.64 and 1,964.16 is: 2,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.28 : 3,932.64 = 1,964.16 : x
  2. Step 2: Convert to fraction form
    2,849.28/3,932.64 = 1,964.16/x
  3. Step 3: Cross multiply
    2,849.28x = 3,932.64 × 1,964.16
  4. Step 4: Simplify right side
    2,849.28x = 7,724,334.18
  5. Step 5: Solve for x
    x = 7,724,334.18/2,849.28
  6. Step 6: Final answer
    x = 2,710.98

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1.5x scale

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.