Home / 4,106.40-6,147.45-2,721.30

Finding the Fourth Proportional to 4,106.40, 6,147.45 and 2,721.30

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Solution

The fourth proportional to 4,106.40, 6,147.45 and 2,721.30 is: 4,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,106.40 : 6,147.45 = 2,721.30 : x
  2. Step 2: Convert to fraction form
    4,106.40/6,147.45 = 2,721.30/x
  3. Step 3: Cross multiply
    4,106.40x = 6,147.45 × 2,721.30
  4. Step 4: Simplify right side
    4,106.40x = 16,729,055.69
  5. Step 5: Solve for x
    x = 16,729,055.69/4,106.40
  6. Step 6: Final answer
    x = 4,073.90

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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.