Home / 5,520.34-7,621.21-3,637.39

Finding the Fourth Proportional to 5,520.34, 7,621.21 and 3,637.39

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Solution

The fourth proportional to 5,520.34, 7,621.21 and 3,637.39 is: 5,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.34 : 7,621.21 = 3,637.39 : x
  2. Step 2: Convert to fraction form
    5,520.34/7,621.21 = 3,637.39/x
  3. Step 3: Cross multiply
    5,520.34x = 7,621.21 × 3,637.39
  4. Step 4: Simplify right side
    5,520.34x = 27,721,313.04
  5. Step 5: Solve for x
    x = 27,721,313.04/5,520.34
  6. Step 6: Final answer
    x = 5,021.67

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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.