Home / 2,768.28-4,153.64-1,904.01

Finding the Fourth Proportional to 2,768.28, 4,153.64 and 1,904.01

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Solution

The fourth proportional to 2,768.28, 4,153.64 and 1,904.01 is: 2,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.28 : 4,153.64 = 1,904.01 : x
  2. Step 2: Convert to fraction form
    2,768.28/4,153.64 = 1,904.01/x
  3. Step 3: Cross multiply
    2,768.28x = 4,153.64 × 1,904.01
  4. Step 4: Simplify right side
    2,768.28x = 7,908,562.58
  5. Step 5: Solve for x
    x = 7,908,562.58/2,768.28
  6. Step 6: Final answer
    x = 2,856.85

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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.