Home / 7,815.40-11,722.77-2,268.63

Finding the Fourth Proportional to 7,815.40, 11,722.77 and 2,268.63

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Solution

The fourth proportional to 7,815.40, 11,722.77 and 2,268.63 is: 3,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.40 : 11,722.77 = 2,268.63 : x
  2. Step 2: Convert to fraction form
    7,815.40/11,722.77 = 2,268.63/x
  3. Step 3: Cross multiply
    7,815.40x = 11,722.77 × 2,268.63
  4. Step 4: Simplify right side
    7,815.40x = 26,594,627.71
  5. Step 5: Solve for x
    x = 26,594,627.71/7,815.40
  6. Step 6: Final answer
    x = 3,402.85

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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.