Home / 7,738.70-10,679.56-4,381.50

Finding the Fourth Proportional to 7,738.70, 10,679.56 and 4,381.50

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Solution

The fourth proportional to 7,738.70, 10,679.56 and 4,381.50 is: 6,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.70 : 10,679.56 = 4,381.50 : x
  2. Step 2: Convert to fraction form
    7,738.70/10,679.56 = 4,381.50/x
  3. Step 3: Cross multiply
    7,738.70x = 10,679.56 × 4,381.50
  4. Step 4: Simplify right side
    7,738.70x = 46,792,492.14
  5. Step 5: Solve for x
    x = 46,792,492.14/7,738.70
  6. Step 6: Final answer
    x = 6,046.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.