Home / 7,702.43-11,555.24-2,772.11

Finding the Fourth Proportional to 7,702.43, 11,555.24 and 2,772.11

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Solution

The fourth proportional to 7,702.43, 11,555.24 and 2,772.11 is: 4,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.43 : 11,555.24 = 2,772.11 : x
  2. Step 2: Convert to fraction form
    7,702.43/11,555.24 = 2,772.11/x
  3. Step 3: Cross multiply
    7,702.43x = 11,555.24 × 2,772.11
  4. Step 4: Simplify right side
    7,702.43x = 32,032,396.36
  5. Step 5: Solve for x
    x = 32,032,396.36/7,702.43
  6. Step 6: Final answer
    x = 4,158.74

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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.