Home / 2,821.36-3,892.25-1,701.68

Finding the Fourth Proportional to 2,821.36, 3,892.25 and 1,701.68

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Solution

The fourth proportional to 2,821.36, 3,892.25 and 1,701.68 is: 2,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.36 : 3,892.25 = 1,701.68 : x
  2. Step 2: Convert to fraction form
    2,821.36/3,892.25 = 1,701.68/x
  3. Step 3: Cross multiply
    2,821.36x = 3,892.25 × 1,701.68
  4. Step 4: Simplify right side
    2,821.36x = 6,623,349.69
  5. Step 5: Solve for x
    x = 6,623,349.69/2,821.36
  6. Step 6: Final answer
    x = 2,347.57

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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.