Home / 2,861.51-3,948.27-1,682.15

Finding the Fourth Proportional to 2,861.51, 3,948.27 and 1,682.15

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Solution

The fourth proportional to 2,861.51, 3,948.27 and 1,682.15 is: 2,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.51 : 3,948.27 = 1,682.15 : x
  2. Step 2: Convert to fraction form
    2,861.51/3,948.27 = 1,682.15/x
  3. Step 3: Cross multiply
    2,861.51x = 3,948.27 × 1,682.15
  4. Step 4: Simplify right side
    2,861.51x = 6,641,562.64
  5. Step 5: Solve for x
    x = 6,641,562.64/2,861.51
  6. Step 6: Final answer
    x = 2,321.00

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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.