Home / 7,485.84-11,228.92-2,291.72

Finding the Fourth Proportional to 7,485.84, 11,228.92 and 2,291.72

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Solution

The fourth proportional to 7,485.84, 11,228.92 and 2,291.72 is: 3,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.84 : 11,228.92 = 2,291.72 : x
  2. Step 2: Convert to fraction form
    7,485.84/11,228.92 = 2,291.72/x
  3. Step 3: Cross multiply
    7,485.84x = 11,228.92 × 2,291.72
  4. Step 4: Simplify right side
    7,485.84x = 25,733,540.54
  5. Step 5: Solve for x
    x = 25,733,540.54/7,485.84
  6. Step 6: Final answer
    x = 3,437.63

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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.