Home / 3,639.98-5,020.10-3,081.68

Finding the Fourth Proportional to 3,639.98, 5,020.10 and 3,081.68

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Solution

The fourth proportional to 3,639.98, 5,020.10 and 3,081.68 is: 4,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.98 : 5,020.10 = 3,081.68 : x
  2. Step 2: Convert to fraction form
    3,639.98/5,020.10 = 3,081.68/x
  3. Step 3: Cross multiply
    3,639.98x = 5,020.10 × 3,081.68
  4. Step 4: Simplify right side
    3,639.98x = 15,470,341.77
  5. Step 5: Solve for x
    x = 15,470,341.77/3,639.98
  6. Step 6: Final answer
    x = 4,250.12

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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.