Home / 1,482.60-2,221.79-1,089.51

Finding the Fourth Proportional to 1,482.60, 2,221.79 and 1,089.51

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Solution

The fourth proportional to 1,482.60, 2,221.79 and 1,089.51 is: 1,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.60 : 2,221.79 = 1,089.51 : x
  2. Step 2: Convert to fraction form
    1,482.60/2,221.79 = 1,089.51/x
  3. Step 3: Cross multiply
    1,482.60x = 2,221.79 × 1,089.51
  4. Step 4: Simplify right side
    1,482.60x = 2,420,656.98
  5. Step 5: Solve for x
    x = 2,420,656.98/1,482.60
  6. Step 6: Final answer
    x = 1,632.71

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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.