Home / 6,630.20-9,149.85-3,646.07

Finding the Fourth Proportional to 6,630.20, 9,149.85 and 3,646.07

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Solution

The fourth proportional to 6,630.20, 9,149.85 and 3,646.07 is: 5,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.20 : 9,149.85 = 3,646.07 : x
  2. Step 2: Convert to fraction form
    6,630.20/9,149.85 = 3,646.07/x
  3. Step 3: Cross multiply
    6,630.20x = 9,149.85 × 3,646.07
  4. Step 4: Simplify right side
    6,630.20x = 33,360,947.84
  5. Step 5: Solve for x
    x = 33,360,947.84/6,630.20
  6. Step 6: Final answer
    x = 5,031.67

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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.