Home / 3,118.89-4,326.13-3,006.69

Finding the Fourth Proportional to 3,118.89, 4,326.13 and 3,006.69

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Solution

The fourth proportional to 3,118.89, 4,326.13 and 3,006.69 is: 4,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.89 : 4,326.13 = 3,006.69 : x
  2. Step 2: Convert to fraction form
    3,118.89/4,326.13 = 3,006.69/x
  3. Step 3: Cross multiply
    3,118.89x = 4,326.13 × 3,006.69
  4. Step 4: Simplify right side
    3,118.89x = 13,007,331.81
  5. Step 5: Solve for x
    x = 13,007,331.81/3,118.89
  6. Step 6: Final answer
    x = 4,170.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.