Home / 7,068.75-10,603.13-2,138.28

Finding the Fourth Proportional to 7,068.75, 10,603.13 and 2,138.28

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Solution

The fourth proportional to 7,068.75, 10,603.13 and 2,138.28 is: 3,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.75 : 10,603.13 = 2,138.28 : x
  2. Step 2: Convert to fraction form
    7,068.75/10,603.13 = 2,138.28/x
  3. Step 3: Cross multiply
    7,068.75x = 10,603.13 × 2,138.28
  4. Step 4: Simplify right side
    7,068.75x = 22,672,450.13
  5. Step 5: Solve for x
    x = 22,672,450.13/7,068.75
  6. Step 6: Final answer
    x = 3,207.42

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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.