Home / 7,710.12-11,565.86-2,163.51

Finding the Fourth Proportional to 7,710.12, 11,565.86 and 2,163.51

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Solution

The fourth proportional to 7,710.12, 11,565.86 and 2,163.51 is: 3,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.12 : 11,565.86 = 2,163.51 : x
  2. Step 2: Convert to fraction form
    7,710.12/11,565.86 = 2,163.51/x
  3. Step 3: Cross multiply
    7,710.12x = 11,565.86 × 2,163.51
  4. Step 4: Simplify right side
    7,710.12x = 25,022,842.95
  5. Step 5: Solve for x
    x = 25,022,842.95/7,710.12
  6. Step 6: Final answer
    x = 3,245.45

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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.