Home / 6,986.10-10,491.30-3,705.60

Finding the Fourth Proportional to 6,986.10, 10,491.30 and 3,705.60

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Solution

The fourth proportional to 6,986.10, 10,491.30 and 3,705.60 is: 5,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.10 : 10,491.30 = 3,705.60 : x
  2. Step 2: Convert to fraction form
    6,986.10/10,491.30 = 3,705.60/x
  3. Step 3: Cross multiply
    6,986.10x = 10,491.30 × 3,705.60
  4. Step 4: Simplify right side
    6,986.10x = 38,876,561.28
  5. Step 5: Solve for x
    x = 38,876,561.28/6,986.10
  6. Step 6: Final answer
    x = 5,564.84

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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.