Home / 2,764.08-3,811.50-1,769.40

Finding the Fourth Proportional to 2,764.08, 3,811.50 and 1,769.40

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Solution

The fourth proportional to 2,764.08, 3,811.50 and 1,769.40 is: 2,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.08 : 3,811.50 = 1,769.40 : x
  2. Step 2: Convert to fraction form
    2,764.08/3,811.50 = 1,769.40/x
  3. Step 3: Cross multiply
    2,764.08x = 3,811.50 × 1,769.40
  4. Step 4: Simplify right side
    2,764.08x = 6,744,068.10
  5. Step 5: Solve for x
    x = 6,744,068.10/2,764.08
  6. Step 6: Final answer
    x = 2,439.90

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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.