Home / 3,391.37-4,680.13-1,878.98

Finding the Fourth Proportional to 3,391.37, 4,680.13 and 1,878.98

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Solution

The fourth proportional to 3,391.37, 4,680.13 and 1,878.98 is: 2,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.37 : 4,680.13 = 1,878.98 : x
  2. Step 2: Convert to fraction form
    3,391.37/4,680.13 = 1,878.98/x
  3. Step 3: Cross multiply
    3,391.37x = 4,680.13 × 1,878.98
  4. Step 4: Simplify right side
    3,391.37x = 8,793,859.26
  5. Step 5: Solve for x
    x = 8,793,859.26/3,391.37
  6. Step 6: Final answer
    x = 2,593.01

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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.