Home / 4,139.18-6,207.98-1,216.80

Finding the Fourth Proportional to 4,139.18, 6,207.98 and 1,216.80

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Solution

The fourth proportional to 4,139.18, 6,207.98 and 1,216.80 is: 1,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.18 : 6,207.98 = 1,216.80 : x
  2. Step 2: Convert to fraction form
    4,139.18/6,207.98 = 1,216.80/x
  3. Step 3: Cross multiply
    4,139.18x = 6,207.98 × 1,216.80
  4. Step 4: Simplify right side
    4,139.18x = 7,553,870.06
  5. Step 5: Solve for x
    x = 7,553,870.06/4,139.18
  6. Step 6: Final answer
    x = 1,824.97

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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.