Home / 3,385.38-5,078.30-1,045.60

Finding the Fourth Proportional to 3,385.38, 5,078.30 and 1,045.60

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Solution

The fourth proportional to 3,385.38, 5,078.30 and 1,045.60 is: 1,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.38 : 5,078.30 = 1,045.60 : x
  2. Step 2: Convert to fraction form
    3,385.38/5,078.30 = 1,045.60/x
  3. Step 3: Cross multiply
    3,385.38x = 5,078.30 × 1,045.60
  4. Step 4: Simplify right side
    3,385.38x = 5,309,870.48
  5. Step 5: Solve for x
    x = 5,309,870.48/3,385.38
  6. Step 6: Final answer
    x = 1,568.47

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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.