Home / 4,087.90-6,139.05-3,165.70

Finding the Fourth Proportional to 4,087.90, 6,139.05 and 3,165.70

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Solution

The fourth proportional to 4,087.90, 6,139.05 and 3,165.70 is: 4,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.90 : 6,139.05 = 3,165.70 : x
  2. Step 2: Convert to fraction form
    4,087.90/6,139.05 = 3,165.70/x
  3. Step 3: Cross multiply
    4,087.90x = 6,139.05 × 3,165.70
  4. Step 4: Simplify right side
    4,087.90x = 19,434,390.59
  5. Step 5: Solve for x
    x = 19,434,390.59/4,087.90
  6. Step 6: Final answer
    x = 4,754.13

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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.