Home / 5,317.68-7,331.76-3,426

Finding the Fourth Proportional to 5,317.68, 7,331.76 and 3,426

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Solution

The fourth proportional to 5,317.68, 7,331.76 and 3,426 is: 4,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.68 : 7,331.76 = 3,426 : x
  2. Step 2: Convert to fraction form
    5,317.68/7,331.76 = 3,426/x
  3. Step 3: Cross multiply
    5,317.68x = 7,331.76 × 3,426
  4. Step 4: Simplify right side
    5,317.68x = 25,118,609.76
  5. Step 5: Solve for x
    x = 25,118,609.76/5,317.68
  6. Step 6: Final answer
    x = 4,723.60

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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.