Home / 7,443.80-11,165.39-1,897.28

Finding the Fourth Proportional to 7,443.80, 11,165.39 and 1,897.28

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Solution

The fourth proportional to 7,443.80, 11,165.39 and 1,897.28 is: 2,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.80 : 11,165.39 = 1,897.28 : x
  2. Step 2: Convert to fraction form
    7,443.80/11,165.39 = 1,897.28/x
  3. Step 3: Cross multiply
    7,443.80x = 11,165.39 × 1,897.28
  4. Step 4: Simplify right side
    7,443.80x = 21,183,854.81
  5. Step 5: Solve for x
    x = 21,183,854.81/7,443.80
  6. Step 6: Final answer
    x = 2,845.84

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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.