Home / 7,431.16-11,150.40-2,988.65

Finding the Fourth Proportional to 7,431.16, 11,150.40 and 2,988.65

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Solution

The fourth proportional to 7,431.16, 11,150.40 and 2,988.65 is: 4,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.16 : 11,150.40 = 2,988.65 : x
  2. Step 2: Convert to fraction form
    7,431.16/11,150.40 = 2,988.65/x
  3. Step 3: Cross multiply
    7,431.16x = 11,150.40 × 2,988.65
  4. Step 4: Simplify right side
    7,431.16x = 33,324,635.49
  5. Step 5: Solve for x
    x = 33,324,635.49/7,431.16
  6. Step 6: Final answer
    x = 4,484.44

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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.