Home / 3,415.57-5,113.02-2,428.79

Finding the Fourth Proportional to 3,415.57, 5,113.02 and 2,428.79

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Solution

The fourth proportional to 3,415.57, 5,113.02 and 2,428.79 is: 3,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.57 : 5,113.02 = 2,428.79 : x
  2. Step 2: Convert to fraction form
    3,415.57/5,113.02 = 2,428.79/x
  3. Step 3: Cross multiply
    3,415.57x = 5,113.02 × 2,428.79
  4. Step 4: Simplify right side
    3,415.57x = 12,418,435.39
  5. Step 5: Solve for x
    x = 12,418,435.39/3,415.57
  6. Step 6: Final answer
    x = 3,635.83

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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.