Home / 5,138.03-7,707.05-4,736.78

Finding the Fourth Proportional to 5,138.03, 7,707.05 and 4,736.78

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Solution

The fourth proportional to 5,138.03, 7,707.05 and 4,736.78 is: 7,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.03 : 7,707.05 = 4,736.78 : x
  2. Step 2: Convert to fraction form
    5,138.03/7,707.05 = 4,736.78/x
  3. Step 3: Cross multiply
    5,138.03x = 7,707.05 × 4,736.78
  4. Step 4: Simplify right side
    5,138.03x = 36,506,584.74
  5. Step 5: Solve for x
    x = 36,506,584.74/5,138.03
  6. Step 6: Final answer
    x = 7,105.17

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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.