Home / 7,118.91-10,684.87-3,611.34

Finding the Fourth Proportional to 7,118.91, 10,684.87 and 3,611.34

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Solution

The fourth proportional to 7,118.91, 10,684.87 and 3,611.34 is: 5,420.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.91 : 10,684.87 = 3,611.34 : x
  2. Step 2: Convert to fraction form
    7,118.91/10,684.87 = 3,611.34/x
  3. Step 3: Cross multiply
    7,118.91x = 10,684.87 × 3,611.34
  4. Step 4: Simplify right side
    7,118.91x = 38,586,645.00
  5. Step 5: Solve for x
    x = 38,586,645.00/7,118.91
  6. Step 6: Final answer
    x = 5,420.31

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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.