Home / 3,123.97-4,682.81-1,480.68

Finding the Fourth Proportional to 3,123.97, 4,682.81 and 1,480.68

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Solution

The fourth proportional to 3,123.97, 4,682.81 and 1,480.68 is: 2,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.97 : 4,682.81 = 1,480.68 : x
  2. Step 2: Convert to fraction form
    3,123.97/4,682.81 = 1,480.68/x
  3. Step 3: Cross multiply
    3,123.97x = 4,682.81 × 1,480.68
  4. Step 4: Simplify right side
    3,123.97x = 6,933,746.81
  5. Step 5: Solve for x
    x = 6,933,746.81/3,123.97
  6. Step 6: Final answer
    x = 2,219.53

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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.