Home / 7,143.85-10,717.31-3,634.35

Finding the Fourth Proportional to 7,143.85, 10,717.31 and 3,634.35

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Solution

The fourth proportional to 7,143.85, 10,717.31 and 3,634.35 is: 5,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.85 : 10,717.31 = 3,634.35 : x
  2. Step 2: Convert to fraction form
    7,143.85/10,717.31 = 3,634.35/x
  3. Step 3: Cross multiply
    7,143.85x = 10,717.31 × 3,634.35
  4. Step 4: Simplify right side
    7,143.85x = 38,950,455.60
  5. Step 5: Solve for x
    x = 38,950,455.60/7,143.85
  6. Step 6: Final answer
    x = 5,452.31

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1.5x scale

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.