Home / 4,139.71-6,210.60-3,400.58

Finding the Fourth Proportional to 4,139.71, 6,210.60 and 3,400.58

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Solution

The fourth proportional to 4,139.71, 6,210.60 and 3,400.58 is: 5,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.71 : 6,210.60 = 3,400.58 : x
  2. Step 2: Convert to fraction form
    4,139.71/6,210.60 = 3,400.58/x
  3. Step 3: Cross multiply
    4,139.71x = 6,210.60 × 3,400.58
  4. Step 4: Simplify right side
    4,139.71x = 21,119,609.99
  5. Step 5: Solve for x
    x = 21,119,609.99/4,139.71
  6. Step 6: Final answer
    x = 5,101.71

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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.