Home / 2,980.68-4,481.14-2,436.81

Finding the Fourth Proportional to 2,980.68, 4,481.14 and 2,436.81

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Solution

The fourth proportional to 2,980.68, 4,481.14 and 2,436.81 is: 3,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.68 : 4,481.14 = 2,436.81 : x
  2. Step 2: Convert to fraction form
    2,980.68/4,481.14 = 2,436.81/x
  3. Step 3: Cross multiply
    2,980.68x = 4,481.14 × 2,436.81
  4. Step 4: Simplify right side
    2,980.68x = 10,919,686.76
  5. Step 5: Solve for x
    x = 10,919,686.76/2,980.68
  6. Step 6: Final answer
    x = 3,663.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.