Home / 3,101.45-4,280.40-2,354.13

Finding the Fourth Proportional to 3,101.45, 4,280.40 and 2,354.13

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Solution

The fourth proportional to 3,101.45, 4,280.40 and 2,354.13 is: 3,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.45 : 4,280.40 = 2,354.13 : x
  2. Step 2: Convert to fraction form
    3,101.45/4,280.40 = 2,354.13/x
  3. Step 3: Cross multiply
    3,101.45x = 4,280.40 × 2,354.13
  4. Step 4: Simplify right side
    3,101.45x = 10,076,618.05
  5. Step 5: Solve for x
    x = 10,076,618.05/3,101.45
  6. Step 6: Final answer
    x = 3,249.01

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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.