Home / 7,205.20-9,940.08-4,372.72

Finding the Fourth Proportional to 7,205.20, 9,940.08 and 4,372.72

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Solution

The fourth proportional to 7,205.20, 9,940.08 and 4,372.72 is: 6,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.20 : 9,940.08 = 4,372.72 : x
  2. Step 2: Convert to fraction form
    7,205.20/9,940.08 = 4,372.72/x
  3. Step 3: Cross multiply
    7,205.20x = 9,940.08 × 4,372.72
  4. Step 4: Simplify right side
    7,205.20x = 43,465,186.62
  5. Step 5: Solve for x
    x = 43,465,186.62/7,205.20
  6. Step 6: Final answer
    x = 6,032.47

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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.