Home / 6,601.72-9,120.18-4,338.40

Finding the Fourth Proportional to 6,601.72, 9,120.18 and 4,338.40

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Solution

The fourth proportional to 6,601.72, 9,120.18 and 4,338.40 is: 5,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.72 : 9,120.18 = 4,338.40 : x
  2. Step 2: Convert to fraction form
    6,601.72/9,120.18 = 4,338.40/x
  3. Step 3: Cross multiply
    6,601.72x = 9,120.18 × 4,338.40
  4. Step 4: Simplify right side
    6,601.72x = 39,566,988.91
  5. Step 5: Solve for x
    x = 39,566,988.91/6,601.72
  6. Step 6: Final answer
    x = 5,993.44

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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.