Home / 6,511.27-8,985.72-3,858.25

Finding the Fourth Proportional to 6,511.27, 8,985.72 and 3,858.25

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Solution

The fourth proportional to 6,511.27, 8,985.72 and 3,858.25 is: 5,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.27 : 8,985.72 = 3,858.25 : x
  2. Step 2: Convert to fraction form
    6,511.27/8,985.72 = 3,858.25/x
  3. Step 3: Cross multiply
    6,511.27x = 8,985.72 × 3,858.25
  4. Step 4: Simplify right side
    6,511.27x = 34,669,154.19
  5. Step 5: Solve for x
    x = 34,669,154.19/6,511.27
  6. Step 6: Final answer
    x = 5,324.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.