Home / 5,317.11-7,337.39-3,078.81

Finding the Fourth Proportional to 5,317.11, 7,337.39 and 3,078.81

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Solution

The fourth proportional to 5,317.11, 7,337.39 and 3,078.81 is: 4,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.11 : 7,337.39 = 3,078.81 : x
  2. Step 2: Convert to fraction form
    5,317.11/7,337.39 = 3,078.81/x
  3. Step 3: Cross multiply
    5,317.11x = 7,337.39 × 3,078.81
  4. Step 4: Simplify right side
    5,317.11x = 22,590,414.31
  5. Step 5: Solve for x
    x = 22,590,414.31/5,317.11
  6. Step 6: Final answer
    x = 4,248.63

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1.5x scale

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.