Home / 4,114.10-6,171.15-2,145.80

Finding the Fourth Proportional to 4,114.10, 6,171.15 and 2,145.80

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Solution

The fourth proportional to 4,114.10, 6,171.15 and 2,145.80 is: 3,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,114.10 : 6,171.15 = 2,145.80 : x
  2. Step 2: Convert to fraction form
    4,114.10/6,171.15 = 2,145.80/x
  3. Step 3: Cross multiply
    4,114.10x = 6,171.15 × 2,145.80
  4. Step 4: Simplify right side
    4,114.10x = 13,242,053.67
  5. Step 5: Solve for x
    x = 13,242,053.67/4,114.10
  6. Step 6: Final answer
    x = 3,218.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.