Home / 1,979.51-2,969.66-1,363.50

Finding the Fourth Proportional to 1,979.51, 2,969.66 and 1,363.50

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Solution

The fourth proportional to 1,979.51, 2,969.66 and 1,363.50 is: 2,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.51 : 2,969.66 = 1,363.50 : x
  2. Step 2: Convert to fraction form
    1,979.51/2,969.66 = 1,363.50/x
  3. Step 3: Cross multiply
    1,979.51x = 2,969.66 × 1,363.50
  4. Step 4: Simplify right side
    1,979.51x = 4,049,124.59
  5. Step 5: Solve for x
    x = 4,049,124.59/1,979.51
  6. Step 6: Final answer
    x = 2,045.52

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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.