Home / 2,775.25-4,162.87-1,620.19

Finding the Fourth Proportional to 2,775.25, 4,162.87 and 1,620.19

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Solution

The fourth proportional to 2,775.25, 4,162.87 and 1,620.19 is: 2,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.25 : 4,162.87 = 1,620.19 : x
  2. Step 2: Convert to fraction form
    2,775.25/4,162.87 = 1,620.19/x
  3. Step 3: Cross multiply
    2,775.25x = 4,162.87 × 1,620.19
  4. Step 4: Simplify right side
    2,775.25x = 6,744,640.35
  5. Step 5: Solve for x
    x = 6,744,640.35/2,775.25
  6. Step 6: Final answer
    x = 2,430.28

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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.