Home / 7,117.31-10,682.48-3,609.74

Finding the Fourth Proportional to 7,117.31, 10,682.48 and 3,609.74

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Solution

The fourth proportional to 7,117.31, 10,682.48 and 3,609.74 is: 5,417.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.31 : 10,682.48 = 3,609.74 : x
  2. Step 2: Convert to fraction form
    7,117.31/10,682.48 = 3,609.74/x
  3. Step 3: Cross multiply
    7,117.31x = 10,682.48 × 3,609.74
  4. Step 4: Simplify right side
    7,117.31x = 38,560,981.04
  5. Step 5: Solve for x
    x = 38,560,981.04/7,117.31
  6. Step 6: Final answer
    x = 5,417.92

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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.