Home / 6,421.20-9,630.45-2,723.55

Finding the Fourth Proportional to 6,421.20, 9,630.45 and 2,723.55

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Solution

The fourth proportional to 6,421.20, 9,630.45 and 2,723.55 is: 4,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.20 : 9,630.45 = 2,723.55 : x
  2. Step 2: Convert to fraction form
    6,421.20/9,630.45 = 2,723.55/x
  3. Step 3: Cross multiply
    6,421.20x = 9,630.45 × 2,723.55
  4. Step 4: Simplify right side
    6,421.20x = 26,229,012.10
  5. Step 5: Solve for x
    x = 26,229,012.10/6,421.20
  6. Step 6: Final answer
    x = 4,084.75

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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.