Home / 3,136.64-4,327.92-1,877.36

Finding the Fourth Proportional to 3,136.64, 4,327.92 and 1,877.36

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Solution

The fourth proportional to 3,136.64, 4,327.92 and 1,877.36 is: 2,590.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.64 : 4,327.92 = 1,877.36 : x
  2. Step 2: Convert to fraction form
    3,136.64/4,327.92 = 1,877.36/x
  3. Step 3: Cross multiply
    3,136.64x = 4,327.92 × 1,877.36
  4. Step 4: Simplify right side
    3,136.64x = 8,125,063.89
  5. Step 5: Solve for x
    x = 8,125,063.89/3,136.64
  6. Step 6: Final answer
    x = 2,590.37

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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.