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Finding the Fourth Proportional to 3,925.80, 5,883.34 and 1,979.32

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Solution

The fourth proportional to 3,925.80, 5,883.34 and 1,979.32 is: 2,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.80 : 5,883.34 = 1,979.32 : x
  2. Step 2: Convert to fraction form
    3,925.80/5,883.34 = 1,979.32/x
  3. Step 3: Cross multiply
    3,925.80x = 5,883.34 × 1,979.32
  4. Step 4: Simplify right side
    3,925.80x = 11,645,012.53
  5. Step 5: Solve for x
    x = 11,645,012.53/3,925.80
  6. Step 6: Final answer
    x = 2,966.28

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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.