Home / 6,405.42-9,612.45-2,245.47

Finding the Fourth Proportional to 6,405.42, 9,612.45 and 2,245.47

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Solution

The fourth proportional to 6,405.42, 9,612.45 and 2,245.47 is: 3,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.42 : 9,612.45 = 2,245.47 : x
  2. Step 2: Convert to fraction form
    6,405.42/9,612.45 = 2,245.47/x
  3. Step 3: Cross multiply
    6,405.42x = 9,612.45 × 2,245.47
  4. Step 4: Simplify right side
    6,405.42x = 21,584,468.10
  5. Step 5: Solve for x
    x = 21,584,468.10/6,405.42
  6. Step 6: Final answer
    x = 3,369.72

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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.