Home / 3,369.72-4,649.78-1,877.56

Finding the Fourth Proportional to 3,369.72, 4,649.78 and 1,877.56

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Solution

The fourth proportional to 3,369.72, 4,649.78 and 1,877.56 is: 2,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.72 : 4,649.78 = 1,877.56 : x
  2. Step 2: Convert to fraction form
    3,369.72/4,649.78 = 1,877.56/x
  3. Step 3: Cross multiply
    3,369.72x = 4,649.78 × 1,877.56
  4. Step 4: Simplify right side
    3,369.72x = 8,730,240.94
  5. Step 5: Solve for x
    x = 8,730,240.94/3,369.72
  6. Step 6: Final answer
    x = 2,590.79

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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.