Home / 7,230.09-9,976.40-4,043.15

Finding the Fourth Proportional to 7,230.09, 9,976.40 and 4,043.15

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Solution

The fourth proportional to 7,230.09, 9,976.40 and 4,043.15 is: 5,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.09 : 9,976.40 = 4,043.15 : x
  2. Step 2: Convert to fraction form
    7,230.09/9,976.40 = 4,043.15/x
  3. Step 3: Cross multiply
    7,230.09x = 9,976.40 × 4,043.15
  4. Step 4: Simplify right side
    7,230.09x = 40,336,064.14
  5. Step 5: Solve for x
    x = 40,336,064.14/7,230.09
  6. Step 6: Final answer
    x = 5,578.91

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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.