Home / 2,928.57-4,394.66-2,655.15

Finding the Fourth Proportional to 2,928.57, 4,394.66 and 2,655.15

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Solution

The fourth proportional to 2,928.57, 4,394.66 and 2,655.15 is: 3,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.57 : 4,394.66 = 2,655.15 : x
  2. Step 2: Convert to fraction form
    2,928.57/4,394.66 = 2,655.15/x
  3. Step 3: Cross multiply
    2,928.57x = 4,394.66 × 2,655.15
  4. Step 4: Simplify right side
    2,928.57x = 11,668,468.22
  5. Step 5: Solve for x
    x = 11,668,468.22/2,928.57
  6. Step 6: Final answer
    x = 3,984.36

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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.