Home / 3,521.71-4,859.69-1,928.00

Finding the Fourth Proportional to 3,521.71, 4,859.69 and 1,928.00

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Solution

The fourth proportional to 3,521.71, 4,859.69 and 1,928.00 is: 2,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.71 : 4,859.69 = 1,928.00 : x
  2. Step 2: Convert to fraction form
    3,521.71/4,859.69 = 1,928.00/x
  3. Step 3: Cross multiply
    3,521.71x = 4,859.69 × 1,928.00
  4. Step 4: Simplify right side
    3,521.71x = 9,369,499.29
  5. Step 5: Solve for x
    x = 9,369,499.29/3,521.71
  6. Step 6: Final answer
    x = 2,660.50

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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.