Home / 3,556.78-4,909.75-2,377.42

Finding the Fourth Proportional to 3,556.78, 4,909.75 and 2,377.42

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Solution

The fourth proportional to 3,556.78, 4,909.75 and 2,377.42 is: 3,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.78 : 4,909.75 = 2,377.42 : x
  2. Step 2: Convert to fraction form
    3,556.78/4,909.75 = 2,377.42/x
  3. Step 3: Cross multiply
    3,556.78x = 4,909.75 × 2,377.42
  4. Step 4: Simplify right side
    3,556.78x = 11,672,519.63
  5. Step 5: Solve for x
    x = 11,672,519.63/3,556.78
  6. Step 6: Final answer
    x = 3,281.77

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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.