Home / 3,313.20-4,973.85-3,288.90

Finding the Fourth Proportional to 3,313.20, 4,973.85 and 3,288.90

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Solution

The fourth proportional to 3,313.20, 4,973.85 and 3,288.90 is: 4,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.20 : 4,973.85 = 3,288.90 : x
  2. Step 2: Convert to fraction form
    3,313.20/4,973.85 = 3,288.90/x
  3. Step 3: Cross multiply
    3,313.20x = 4,973.85 × 3,288.90
  4. Step 4: Simplify right side
    3,313.20x = 16,358,495.27
  5. Step 5: Solve for x
    x = 16,358,495.27/3,313.20
  6. Step 6: Final answer
    x = 4,937.37

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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.