Home / 2,855.89-4,275.62-2,110.48

Finding the Fourth Proportional to 2,855.89, 4,275.62 and 2,110.48

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Solution

The fourth proportional to 2,855.89, 4,275.62 and 2,110.48 is: 3,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.89 : 4,275.62 = 2,110.48 : x
  2. Step 2: Convert to fraction form
    2,855.89/4,275.62 = 2,110.48/x
  3. Step 3: Cross multiply
    2,855.89x = 4,275.62 × 2,110.48
  4. Step 4: Simplify right side
    2,855.89x = 9,023,610.50
  5. Step 5: Solve for x
    x = 9,023,610.50/2,855.89
  6. Step 6: Final answer
    x = 3,159.65

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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.