Home / 1,979.22-2,970.88-1,459.82

Finding the Fourth Proportional to 1,979.22, 2,970.88 and 1,459.82

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Solution

The fourth proportional to 1,979.22, 2,970.88 and 1,459.82 is: 2,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.22 : 2,970.88 = 1,459.82 : x
  2. Step 2: Convert to fraction form
    1,979.22/2,970.88 = 1,459.82/x
  3. Step 3: Cross multiply
    1,979.22x = 2,970.88 × 1,459.82
  4. Step 4: Simplify right side
    1,979.22x = 4,336,950.04
  5. Step 5: Solve for x
    x = 4,336,950.04/1,979.22
  6. Step 6: Final answer
    x = 2,191.24

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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.