Home / 2,928.50-4,036.41-2,220.12

Finding the Fourth Proportional to 2,928.50, 4,036.41 and 2,220.12

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Solution

The fourth proportional to 2,928.50, 4,036.41 and 2,220.12 is: 3,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.50 : 4,036.41 = 2,220.12 : x
  2. Step 2: Convert to fraction form
    2,928.50/4,036.41 = 2,220.12/x
  3. Step 3: Cross multiply
    2,928.50x = 4,036.41 × 2,220.12
  4. Step 4: Simplify right side
    2,928.50x = 8,961,314.57
  5. Step 5: Solve for x
    x = 8,961,314.57/2,928.50
  6. Step 6: Final answer
    x = 3,060.04

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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.