Home / 7,317.68-10,973.20-3,155.72

Finding the Fourth Proportional to 7,317.68, 10,973.20 and 3,155.72

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Solution

The fourth proportional to 7,317.68, 10,973.20 and 3,155.72 is: 4,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.68 : 10,973.20 = 3,155.72 : x
  2. Step 2: Convert to fraction form
    7,317.68/10,973.20 = 3,155.72/x
  3. Step 3: Cross multiply
    7,317.68x = 10,973.20 × 3,155.72
  4. Step 4: Simplify right side
    7,317.68x = 34,628,346.70
  5. Step 5: Solve for x
    x = 34,628,346.70/7,317.68
  6. Step 6: Final answer
    x = 4,732.15

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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.