Home / 4,976.14-7,459.17-3,128.56

Finding the Fourth Proportional to 4,976.14, 7,459.17 and 3,128.56

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Solution

The fourth proportional to 4,976.14, 7,459.17 and 3,128.56 is: 4,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.14 : 7,459.17 = 3,128.56 : x
  2. Step 2: Convert to fraction form
    4,976.14/7,459.17 = 3,128.56/x
  3. Step 3: Cross multiply
    4,976.14x = 7,459.17 × 3,128.56
  4. Step 4: Simplify right side
    4,976.14x = 23,336,460.90
  5. Step 5: Solve for x
    x = 23,336,460.90/4,976.14
  6. Step 6: Final answer
    x = 4,689.67

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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.