Home / 5,420.59-7,481.66-3,528.88

Finding the Fourth Proportional to 5,420.59, 7,481.66 and 3,528.88

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Solution

The fourth proportional to 5,420.59, 7,481.66 and 3,528.88 is: 4,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.59 : 7,481.66 = 3,528.88 : x
  2. Step 2: Convert to fraction form
    5,420.59/7,481.66 = 3,528.88/x
  3. Step 3: Cross multiply
    5,420.59x = 7,481.66 × 3,528.88
  4. Step 4: Simplify right side
    5,420.59x = 26,401,889.25
  5. Step 5: Solve for x
    x = 26,401,889.25/5,420.59
  6. Step 6: Final answer
    x = 4,870.67

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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.