Home / 1,868.87-2,803.61-1,664.75

Finding the Fourth Proportional to 1,868.87, 2,803.61 and 1,664.75

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Solution

The fourth proportional to 1,868.87, 2,803.61 and 1,664.75 is: 2,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.87 : 2,803.61 = 1,664.75 : x
  2. Step 2: Convert to fraction form
    1,868.87/2,803.61 = 1,664.75/x
  3. Step 3: Cross multiply
    1,868.87x = 2,803.61 × 1,664.75
  4. Step 4: Simplify right side
    1,868.87x = 4,667,320.92
  5. Step 5: Solve for x
    x = 4,667,320.92/1,868.87
  6. Step 6: Final answer
    x = 2,497.40

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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.