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Finding the Fourth Proportional to 5,719.32, 7,893.24 and 3,480.90

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Solution

The fourth proportional to 5,719.32, 7,893.24 and 3,480.90 is: 4,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.32 : 7,893.24 = 3,480.90 : x
  2. Step 2: Convert to fraction form
    5,719.32/7,893.24 = 3,480.90/x
  3. Step 3: Cross multiply
    5,719.32x = 7,893.24 × 3,480.90
  4. Step 4: Simplify right side
    5,719.32x = 27,475,579.12
  5. Step 5: Solve for x
    x = 27,475,579.12/5,719.32
  6. Step 6: Final answer
    x = 4,803.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.