Home / 3,117.36-4,302.55-1,791.93

Finding the Fourth Proportional to 3,117.36, 4,302.55 and 1,791.93

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Solution

The fourth proportional to 3,117.36, 4,302.55 and 1,791.93 is: 2,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.36 : 4,302.55 = 1,791.93 : x
  2. Step 2: Convert to fraction form
    3,117.36/4,302.55 = 1,791.93/x
  3. Step 3: Cross multiply
    3,117.36x = 4,302.55 × 1,791.93
  4. Step 4: Simplify right side
    3,117.36x = 7,709,868.42
  5. Step 5: Solve for x
    x = 7,709,868.42/3,117.36
  6. Step 6: Final answer
    x = 2,473.20

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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.