Home / 1,941.77-2,911.53-1,326.22

Finding the Fourth Proportional to 1,941.77, 2,911.53 and 1,326.22

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Solution

The fourth proportional to 1,941.77, 2,911.53 and 1,326.22 is: 1,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.77 : 2,911.53 = 1,326.22 : x
  2. Step 2: Convert to fraction form
    1,941.77/2,911.53 = 1,326.22/x
  3. Step 3: Cross multiply
    1,941.77x = 2,911.53 × 1,326.22
  4. Step 4: Simplify right side
    1,941.77x = 3,861,337.93
  5. Step 5: Solve for x
    x = 3,861,337.93/1,941.77
  6. Step 6: Final answer
    x = 1,988.56

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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.