Home / 6,078.60-9,120.06-2,618.28

Finding the Fourth Proportional to 6,078.60, 9,120.06 and 2,618.28

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Solution

The fourth proportional to 6,078.60, 9,120.06 and 2,618.28 is: 3,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.60 : 9,120.06 = 2,618.28 : x
  2. Step 2: Convert to fraction form
    6,078.60/9,120.06 = 2,618.28/x
  3. Step 3: Cross multiply
    6,078.60x = 9,120.06 × 2,618.28
  4. Step 4: Simplify right side
    6,078.60x = 23,878,870.70
  5. Step 5: Solve for x
    x = 23,878,870.70/6,078.60
  6. Step 6: Final answer
    x = 3,928.35

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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.