Home / 2,699.40-4,047.66-1,138.92

Finding the Fourth Proportional to 2,699.40, 4,047.66 and 1,138.92

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Solution

The fourth proportional to 2,699.40, 4,047.66 and 1,138.92 is: 1,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.40 : 4,047.66 = 1,138.92 : x
  2. Step 2: Convert to fraction form
    2,699.40/4,047.66 = 1,138.92/x
  3. Step 3: Cross multiply
    2,699.40x = 4,047.66 × 1,138.92
  4. Step 4: Simplify right side
    2,699.40x = 4,609,960.93
  5. Step 5: Solve for x
    x = 4,609,960.93/2,699.40
  6. Step 6: Final answer
    x = 1,707.77

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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.