Home / 1,776.96-2,661.90-1,381.92

Finding the Fourth Proportional to 1,776.96, 2,661.90 and 1,381.92

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Solution

The fourth proportional to 1,776.96, 2,661.90 and 1,381.92 is: 2,070.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.96 : 2,661.90 = 1,381.92 : x
  2. Step 2: Convert to fraction form
    1,776.96/2,661.90 = 1,381.92/x
  3. Step 3: Cross multiply
    1,776.96x = 2,661.90 × 1,381.92
  4. Step 4: Simplify right side
    1,776.96x = 3,678,532.85
  5. Step 5: Solve for x
    x = 3,678,532.85/1,776.96
  6. Step 6: Final answer
    x = 2,070.13

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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.