Home / 5,137.06-7,081.68-3,146.35

Finding the Fourth Proportional to 5,137.06, 7,081.68 and 3,146.35

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Solution

The fourth proportional to 5,137.06, 7,081.68 and 3,146.35 is: 4,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.06 : 7,081.68 = 3,146.35 : x
  2. Step 2: Convert to fraction form
    5,137.06/7,081.68 = 3,146.35/x
  3. Step 3: Cross multiply
    5,137.06x = 7,081.68 × 3,146.35
  4. Step 4: Simplify right side
    5,137.06x = 22,281,443.87
  5. Step 5: Solve for x
    x = 22,281,443.87/5,137.06
  6. Step 6: Final answer
    x = 4,337.39

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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.