Home / 5,358.20-7,394.10-3,120.14

Finding the Fourth Proportional to 5,358.20, 7,394.10 and 3,120.14

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Solution

The fourth proportional to 5,358.20, 7,394.10 and 3,120.14 is: 4,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.20 : 7,394.10 = 3,120.14 : x
  2. Step 2: Convert to fraction form
    5,358.20/7,394.10 = 3,120.14/x
  3. Step 3: Cross multiply
    5,358.20x = 7,394.10 × 3,120.14
  4. Step 4: Simplify right side
    5,358.20x = 23,070,627.17
  5. Step 5: Solve for x
    x = 23,070,627.17/5,358.20
  6. Step 6: Final answer
    x = 4,305.67

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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.