Home / 2,928.50-4,037.27-1,982.80

Finding the Fourth Proportional to 2,928.50, 4,037.27 and 1,982.80

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Solution

The fourth proportional to 2,928.50, 4,037.27 and 1,982.80 is: 2,733.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.50 : 4,037.27 = 1,982.80 : x
  2. Step 2: Convert to fraction form
    2,928.50/4,037.27 = 1,982.80/x
  3. Step 3: Cross multiply
    2,928.50x = 4,037.27 × 1,982.80
  4. Step 4: Simplify right side
    2,928.50x = 8,005,098.96
  5. Step 5: Solve for x
    x = 8,005,098.96/2,928.50
  6. Step 6: Final answer
    x = 2,733.52

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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.