Home / 1,979.49-2,969.24-1,402.77

Finding the Fourth Proportional to 1,979.49, 2,969.24 and 1,402.77

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Solution

The fourth proportional to 1,979.49, 2,969.24 and 1,402.77 is: 2,104.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.49 : 2,969.24 = 1,402.77 : x
  2. Step 2: Convert to fraction form
    1,979.49/2,969.24 = 1,402.77/x
  3. Step 3: Cross multiply
    1,979.49x = 2,969.24 × 1,402.77
  4. Step 4: Simplify right side
    1,979.49x = 4,165,160.79
  5. Step 5: Solve for x
    x = 4,165,160.79/1,979.49
  6. Step 6: Final answer
    x = 2,104.16

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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.