Home / 7,786.10-11,681.12-2,239.32

Finding the Fourth Proportional to 7,786.10, 11,681.12 and 2,239.32

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Solution

The fourth proportional to 7,786.10, 11,681.12 and 2,239.32 is: 3,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.10 : 11,681.12 = 2,239.32 : x
  2. Step 2: Convert to fraction form
    7,786.10/11,681.12 = 2,239.32/x
  3. Step 3: Cross multiply
    7,786.10x = 11,681.12 × 2,239.32
  4. Step 4: Simplify right side
    7,786.10x = 26,157,754.44
  5. Step 5: Solve for x
    x = 26,157,754.44/7,786.10
  6. Step 6: Final answer
    x = 3,359.55

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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.