Home / 5,313.40-7,964.76-2,195.68

Finding the Fourth Proportional to 5,313.40, 7,964.76 and 2,195.68

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Solution

The fourth proportional to 5,313.40, 7,964.76 and 2,195.68 is: 3,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.40 : 7,964.76 = 2,195.68 : x
  2. Step 2: Convert to fraction form
    5,313.40/7,964.76 = 2,195.68/x
  3. Step 3: Cross multiply
    5,313.40x = 7,964.76 × 2,195.68
  4. Step 4: Simplify right side
    5,313.40x = 17,488,064.24
  5. Step 5: Solve for x
    x = 17,488,064.24/5,313.40
  6. Step 6: Final answer
    x = 3,291.31

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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.