Home / 4,086.05-6,124.51-1,620.20

Finding the Fourth Proportional to 4,086.05, 6,124.51 and 1,620.20

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Solution

The fourth proportional to 4,086.05, 6,124.51 and 1,620.20 is: 2,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.05 : 6,124.51 = 1,620.20 : x
  2. Step 2: Convert to fraction form
    4,086.05/6,124.51 = 1,620.20/x
  3. Step 3: Cross multiply
    4,086.05x = 6,124.51 × 1,620.20
  4. Step 4: Simplify right side
    4,086.05x = 9,922,948.44
  5. Step 5: Solve for x
    x = 9,922,948.44/4,086.05
  6. Step 6: Final answer
    x = 2,428.50

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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.