Home / 2,846.60-3,928.30-1,587.65

Finding the Fourth Proportional to 2,846.60, 3,928.30 and 1,587.65

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Solution

The fourth proportional to 2,846.60, 3,928.30 and 1,587.65 is: 2,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.60 : 3,928.30 = 1,587.65 : x
  2. Step 2: Convert to fraction form
    2,846.60/3,928.30 = 1,587.65/x
  3. Step 3: Cross multiply
    2,846.60x = 3,928.30 × 1,587.65
  4. Step 4: Simplify right side
    2,846.60x = 6,236,765.50
  5. Step 5: Solve for x
    x = 6,236,765.50/2,846.60
  6. Step 6: Final answer
    x = 2,190.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.