Home / 3,370.42-4,650.88-1,878.69

Finding the Fourth Proportional to 3,370.42, 4,650.88 and 1,878.69

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Solution

The fourth proportional to 3,370.42, 4,650.88 and 1,878.69 is: 2,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.42 : 4,650.88 = 1,878.69 : x
  2. Step 2: Convert to fraction form
    3,370.42/4,650.88 = 1,878.69/x
  3. Step 3: Cross multiply
    3,370.42x = 4,650.88 × 1,878.69
  4. Step 4: Simplify right side
    3,370.42x = 8,737,561.75
  5. Step 5: Solve for x
    x = 8,737,561.75/3,370.42
  6. Step 6: Final answer
    x = 2,592.43

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Half scale
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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.