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Finding the Fourth Proportional to 5,512.93, 8,270.54 and 1,815.38

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Solution

The fourth proportional to 5,512.93, 8,270.54 and 1,815.38 is: 2,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.93 : 8,270.54 = 1,815.38 : x
  2. Step 2: Convert to fraction form
    5,512.93/8,270.54 = 1,815.38/x
  3. Step 3: Cross multiply
    5,512.93x = 8,270.54 × 1,815.38
  4. Step 4: Simplify right side
    5,512.93x = 15,014,184.50
  5. Step 5: Solve for x
    x = 15,014,184.50/5,512.93
  6. Step 6: Final answer
    x = 2,723.45

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1.5x scale

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.