Home / 4,140.65-6,205.31-2,188.96

Finding the Fourth Proportional to 4,140.65, 6,205.31 and 2,188.96

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Solution

The fourth proportional to 4,140.65, 6,205.31 and 2,188.96 is: 3,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.65 : 6,205.31 = 2,188.96 : x
  2. Step 2: Convert to fraction form
    4,140.65/6,205.31 = 2,188.96/x
  3. Step 3: Cross multiply
    4,140.65x = 6,205.31 × 2,188.96
  4. Step 4: Simplify right side
    4,140.65x = 13,583,157.13
  5. Step 5: Solve for x
    x = 13,583,157.13/4,140.65
  6. Step 6: Final answer
    x = 3,280.44

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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.