Home / 3,117.66-4,302.64-1,791.84

Finding the Fourth Proportional to 3,117.66, 4,302.64 and 1,791.84

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Solution

The fourth proportional to 3,117.66, 4,302.64 and 1,791.84 is: 2,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.66 : 4,302.64 = 1,791.84 : x
  2. Step 2: Convert to fraction form
    3,117.66/4,302.64 = 1,791.84/x
  3. Step 3: Cross multiply
    3,117.66x = 4,302.64 × 1,791.84
  4. Step 4: Simplify right side
    3,117.66x = 7,709,642.46
  5. Step 5: Solve for x
    x = 7,709,642.46/3,117.66
  6. Step 6: Final answer
    x = 2,472.89

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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.