Home / 2,805.06-3,870.90-1,610.22

Finding the Fourth Proportional to 2,805.06, 3,870.90 and 1,610.22

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Solution

The fourth proportional to 2,805.06, 3,870.90 and 1,610.22 is: 2,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.06 : 3,870.90 = 1,610.22 : x
  2. Step 2: Convert to fraction form
    2,805.06/3,870.90 = 1,610.22/x
  3. Step 3: Cross multiply
    2,805.06x = 3,870.90 × 1,610.22
  4. Step 4: Simplify right side
    2,805.06x = 6,233,000.60
  5. Step 5: Solve for x
    x = 6,233,000.60/2,805.06
  6. Step 6: Final answer
    x = 2,222.06

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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.