Home / 7,069.18-10,603.82-2,138.75

Finding the Fourth Proportional to 7,069.18, 10,603.82 and 2,138.75

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Solution

The fourth proportional to 7,069.18, 10,603.82 and 2,138.75 is: 3,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.18 : 10,603.82 = 2,138.75 : x
  2. Step 2: Convert to fraction form
    7,069.18/10,603.82 = 2,138.75/x
  3. Step 3: Cross multiply
    7,069.18x = 10,603.82 × 2,138.75
  4. Step 4: Simplify right side
    7,069.18x = 22,678,920.03
  5. Step 5: Solve for x
    x = 22,678,920.03/7,069.18
  6. Step 6: Final answer
    x = 3,208.14

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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.