Home / 7,155.16-10,736.96-2,772.40

Finding the Fourth Proportional to 7,155.16, 10,736.96 and 2,772.40

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Solution

The fourth proportional to 7,155.16, 10,736.96 and 2,772.40 is: 4,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.16 : 10,736.96 = 2,772.40 : x
  2. Step 2: Convert to fraction form
    7,155.16/10,736.96 = 2,772.40/x
  3. Step 3: Cross multiply
    7,155.16x = 10,736.96 × 2,772.40
  4. Step 4: Simplify right side
    7,155.16x = 29,767,147.90
  5. Step 5: Solve for x
    x = 29,767,147.90/7,155.16
  6. Step 6: Final answer
    x = 4,160.24

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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.