Home / 4,087.91-6,130.60-2,139.05

Finding the Fourth Proportional to 4,087.91, 6,130.60 and 2,139.05

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Solution

The fourth proportional to 4,087.91, 6,130.60 and 2,139.05 is: 3,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.91 : 6,130.60 = 2,139.05 : x
  2. Step 2: Convert to fraction form
    4,087.91/6,130.60 = 2,139.05/x
  3. Step 3: Cross multiply
    4,087.91x = 6,130.60 × 2,139.05
  4. Step 4: Simplify right side
    4,087.91x = 13,113,659.93
  5. Step 5: Solve for x
    x = 13,113,659.93/4,087.91
  6. Step 6: Final answer
    x = 3,207.91

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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.