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Finding the Fourth Proportional to 5,473.78, 8,208.95 and 1,775.15

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Solution

The fourth proportional to 5,473.78, 8,208.95 and 1,775.15 is: 2,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.78 : 8,208.95 = 1,775.15 : x
  2. Step 2: Convert to fraction form
    5,473.78/8,208.95 = 1,775.15/x
  3. Step 3: Cross multiply
    5,473.78x = 8,208.95 × 1,775.15
  4. Step 4: Simplify right side
    5,473.78x = 14,572,098.46
  5. Step 5: Solve for x
    x = 14,572,098.46/5,473.78
  6. Step 6: Final answer
    x = 2,662.16

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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.