Home / 7,068.70-10,603.12-2,138.38

Finding the Fourth Proportional to 7,068.70, 10,603.12 and 2,138.38

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Solution

The fourth proportional to 7,068.70, 10,603.12 and 2,138.38 is: 3,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.70 : 10,603.12 = 2,138.38 : x
  2. Step 2: Convert to fraction form
    7,068.70/10,603.12 = 2,138.38/x
  3. Step 3: Cross multiply
    7,068.70x = 10,603.12 × 2,138.38
  4. Step 4: Simplify right side
    7,068.70x = 22,673,499.75
  5. Step 5: Solve for x
    x = 22,673,499.75/7,068.70
  6. Step 6: Final answer
    x = 3,207.59

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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.