Home / 4,072.24-6,109.10-1,299.10

Finding the Fourth Proportional to 4,072.24, 6,109.10 and 1,299.10

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Solution

The fourth proportional to 4,072.24, 6,109.10 and 1,299.10 is: 1,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.24 : 6,109.10 = 1,299.10 : x
  2. Step 2: Convert to fraction form
    4,072.24/6,109.10 = 1,299.10/x
  3. Step 3: Cross multiply
    4,072.24x = 6,109.10 × 1,299.10
  4. Step 4: Simplify right side
    4,072.24x = 7,936,331.81
  5. Step 5: Solve for x
    x = 7,936,331.81/4,072.24
  6. Step 6: Final answer
    x = 1,948.89

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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.