Home / 4,188.30-6,282.45-3,986.70

Finding the Fourth Proportional to 4,188.30, 6,282.45 and 3,986.70

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Solution

The fourth proportional to 4,188.30, 6,282.45 and 3,986.70 is: 5,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.30 : 6,282.45 = 3,986.70 : x
  2. Step 2: Convert to fraction form
    4,188.30/6,282.45 = 3,986.70/x
  3. Step 3: Cross multiply
    4,188.30x = 6,282.45 × 3,986.70
  4. Step 4: Simplify right side
    4,188.30x = 25,046,243.42
  5. Step 5: Solve for x
    x = 25,046,243.42/4,188.30
  6. Step 6: Final answer
    x = 5,980.05

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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.