Home / 7,117.11-10,682.20-3,609.56

Finding the Fourth Proportional to 7,117.11, 10,682.20 and 3,609.56

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Solution

The fourth proportional to 7,117.11, 10,682.20 and 3,609.56 is: 5,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.11 : 10,682.20 = 3,609.56 : x
  2. Step 2: Convert to fraction form
    7,117.11/10,682.20 = 3,609.56/x
  3. Step 3: Cross multiply
    7,117.11x = 10,682.20 × 3,609.56
  4. Step 4: Simplify right side
    7,117.11x = 38,558,041.83
  5. Step 5: Solve for x
    x = 38,558,041.83/7,117.11
  6. Step 6: Final answer
    x = 5,417.65

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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.