Home / 3,572.42-4,929.66-1,979.06

Finding the Fourth Proportional to 3,572.42, 4,929.66 and 1,979.06

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Solution

The fourth proportional to 3,572.42, 4,929.66 and 1,979.06 is: 2,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.42 : 4,929.66 = 1,979.06 : x
  2. Step 2: Convert to fraction form
    3,572.42/4,929.66 = 1,979.06/x
  3. Step 3: Cross multiply
    3,572.42x = 4,929.66 × 1,979.06
  4. Step 4: Simplify right side
    3,572.42x = 9,756,068.27
  5. Step 5: Solve for x
    x = 9,756,068.27/3,572.42
  6. Step 6: Final answer
    x = 2,730.94

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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.