Home / 2,643.10-3,647.22-1,580.66

Finding the Fourth Proportional to 2,643.10, 3,647.22 and 1,580.66

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Solution

The fourth proportional to 2,643.10, 3,647.22 and 1,580.66 is: 2,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.10 : 3,647.22 = 1,580.66 : x
  2. Step 2: Convert to fraction form
    2,643.10/3,647.22 = 1,580.66/x
  3. Step 3: Cross multiply
    2,643.10x = 3,647.22 × 1,580.66
  4. Step 4: Simplify right side
    2,643.10x = 5,765,014.77
  5. Step 5: Solve for x
    x = 5,765,014.77/2,643.10
  6. Step 6: Final answer
    x = 2,181.16

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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.