Home / 3,572.35-4,929.77-1,979.10

Finding the Fourth Proportional to 3,572.35, 4,929.77 and 1,979.10

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Solution

The fourth proportional to 3,572.35, 4,929.77 and 1,979.10 is: 2,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.35 : 4,929.77 = 1,979.10 : x
  2. Step 2: Convert to fraction form
    3,572.35/4,929.77 = 1,979.10/x
  3. Step 3: Cross multiply
    3,572.35x = 4,929.77 × 1,979.10
  4. Step 4: Simplify right side
    3,572.35x = 9,756,521.05
  5. Step 5: Solve for x
    x = 9,756,521.05/3,572.35
  6. Step 6: Final answer
    x = 2,731.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.