Home / 3,136.43-4,327.85-1,877.20

Finding the Fourth Proportional to 3,136.43, 4,327.85 and 1,877.20

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Solution

The fourth proportional to 3,136.43, 4,327.85 and 1,877.20 is: 2,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.43 : 4,327.85 = 1,877.20 : x
  2. Step 2: Convert to fraction form
    3,136.43/4,327.85 = 1,877.20/x
  3. Step 3: Cross multiply
    3,136.43x = 4,327.85 × 1,877.20
  4. Step 4: Simplify right side
    3,136.43x = 8,124,240.02
  5. Step 5: Solve for x
    x = 8,124,240.02/3,136.43
  6. Step 6: Final answer
    x = 2,590.28

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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.