Home / 2,839.77-3,919.10-1,580.93

Finding the Fourth Proportional to 2,839.77, 3,919.10 and 1,580.93

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Solution

The fourth proportional to 2,839.77, 3,919.10 and 1,580.93 is: 2,181.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.77 : 3,919.10 = 1,580.93 : x
  2. Step 2: Convert to fraction form
    2,839.77/3,919.10 = 1,580.93/x
  3. Step 3: Cross multiply
    2,839.77x = 3,919.10 × 1,580.93
  4. Step 4: Simplify right side
    2,839.77x = 6,195,795.26
  5. Step 5: Solve for x
    x = 6,195,795.26/2,839.77
  6. Step 6: Final answer
    x = 2,181.79

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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.