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Finding the Fourth Proportional to 2,879.77, 3,972.84 and 1,883.31

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Solution

The fourth proportional to 2,879.77, 3,972.84 and 1,883.31 is: 2,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.77 : 3,972.84 = 1,883.31 : x
  2. Step 2: Convert to fraction form
    2,879.77/3,972.84 = 1,883.31/x
  3. Step 3: Cross multiply
    2,879.77x = 3,972.84 × 1,883.31
  4. Step 4: Simplify right side
    2,879.77x = 7,482,089.30
  5. Step 5: Solve for x
    x = 7,482,089.30/2,879.77
  6. Step 6: Final answer
    x = 2,598.16

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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.