Home / 3,079.49-4,248.32-2,018.39

Finding the Fourth Proportional to 3,079.49, 4,248.32 and 2,018.39

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Solution

The fourth proportional to 3,079.49, 4,248.32 and 2,018.39 is: 2,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.49 : 4,248.32 = 2,018.39 : x
  2. Step 2: Convert to fraction form
    3,079.49/4,248.32 = 2,018.39/x
  3. Step 3: Cross multiply
    3,079.49x = 4,248.32 × 2,018.39
  4. Step 4: Simplify right side
    3,079.49x = 8,574,735.27
  5. Step 5: Solve for x
    x = 8,574,735.27/3,079.49
  6. Step 6: Final answer
    x = 2,784.47

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1.5x scale

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.