Home / 3,025.40-4,538.74-1,078.88

Finding the Fourth Proportional to 3,025.40, 4,538.74 and 1,078.88

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Solution

The fourth proportional to 3,025.40, 4,538.74 and 1,078.88 is: 1,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.40 : 4,538.74 = 1,078.88 : x
  2. Step 2: Convert to fraction form
    3,025.40/4,538.74 = 1,078.88/x
  3. Step 3: Cross multiply
    3,025.40x = 4,538.74 × 1,078.88
  4. Step 4: Simplify right side
    3,025.40x = 4,896,755.81
  5. Step 5: Solve for x
    x = 4,896,755.81/3,025.40
  6. Step 6: Final answer
    x = 1,618.55

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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.