Home / 4,139.41-6,210.39-1,328.66

Finding the Fourth Proportional to 4,139.41, 6,210.39 and 1,328.66

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Solution

The fourth proportional to 4,139.41, 6,210.39 and 1,328.66 is: 1,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.41 : 6,210.39 = 1,328.66 : x
  2. Step 2: Convert to fraction form
    4,139.41/6,210.39 = 1,328.66/x
  3. Step 3: Cross multiply
    4,139.41x = 6,210.39 × 1,328.66
  4. Step 4: Simplify right side
    4,139.41x = 8,251,496.78
  5. Step 5: Solve for x
    x = 8,251,496.78/4,139.41
  6. Step 6: Final answer
    x = 1,993.40

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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.