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Finding the Fourth Proportional to 3,449, 4,759.64 and 1,877.09

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Solution

The fourth proportional to 3,449, 4,759.64 and 1,877.09 is: 2,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449 : 4,759.64 = 1,877.09 : x
  2. Step 2: Convert to fraction form
    3,449/4,759.64 = 1,877.09/x
  3. Step 3: Cross multiply
    3,449x = 4,759.64 × 1,877.09
  4. Step 4: Simplify right side
    3,449x = 8,934,263.26
  5. Step 5: Solve for x
    x = 8,934,263.26/3,449
  6. Step 6: Final answer
    x = 2,590.39

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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.