Home / 7,610.12-11,415.24-2,678.63

Finding the Fourth Proportional to 7,610.12, 11,415.24 and 2,678.63

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Solution

The fourth proportional to 7,610.12, 11,415.24 and 2,678.63 is: 4,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.12 : 11,415.24 = 2,678.63 : x
  2. Step 2: Convert to fraction form
    7,610.12/11,415.24 = 2,678.63/x
  3. Step 3: Cross multiply
    7,610.12x = 11,415.24 × 2,678.63
  4. Step 4: Simplify right side
    7,610.12x = 30,577,204.32
  5. Step 5: Solve for x
    x = 30,577,204.32/7,610.12
  6. Step 6: Final answer
    x = 4,017.97

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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.