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Finding the Fourth Proportional to 5,921.99, 8,881.07 and 3,147.08

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Solution

The fourth proportional to 5,921.99, 8,881.07 and 3,147.08 is: 4,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.99 : 8,881.07 = 3,147.08 : x
  2. Step 2: Convert to fraction form
    5,921.99/8,881.07 = 3,147.08/x
  3. Step 3: Cross multiply
    5,921.99x = 8,881.07 × 3,147.08
  4. Step 4: Simplify right side
    5,921.99x = 27,949,411.46
  5. Step 5: Solve for x
    x = 27,949,411.46/5,921.99
  6. Step 6: Final answer
    x = 4,719.60

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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.