Home / 4,313.76-6,465.96-2,118.12

Finding the Fourth Proportional to 4,313.76, 6,465.96 and 2,118.12

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Solution

The fourth proportional to 4,313.76, 6,465.96 and 2,118.12 is: 3,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,313.76 : 6,465.96 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    4,313.76/6,465.96 = 2,118.12/x
  3. Step 3: Cross multiply
    4,313.76x = 6,465.96 × 2,118.12
  4. Step 4: Simplify right side
    4,313.76x = 13,695,679.20
  5. Step 5: Solve for x
    x = 13,695,679.20/4,313.76
  6. Step 6: Final answer
    x = 3,174.88

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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.