Home / 3,118.68-4,304.52-1,876.68

Finding the Fourth Proportional to 3,118.68, 4,304.52 and 1,876.68

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Solution

The fourth proportional to 3,118.68, 4,304.52 and 1,876.68 is: 2,590.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,304.52 = 1,876.68 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,304.52 = 1,876.68/x
  3. Step 3: Cross multiply
    3,118.68x = 4,304.52 × 1,876.68
  4. Step 4: Simplify right side
    3,118.68x = 8,078,206.59
  5. Step 5: Solve for x
    x = 8,078,206.59/3,118.68
  6. Step 6: Final answer
    x = 2,590.26

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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.