Home / 2,892.35-3,991.47-1,713.20

Finding the Fourth Proportional to 2,892.35, 3,991.47 and 1,713.20

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Solution

The fourth proportional to 2,892.35, 3,991.47 and 1,713.20 is: 2,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.35 : 3,991.47 = 1,713.20 : x
  2. Step 2: Convert to fraction form
    2,892.35/3,991.47 = 1,713.20/x
  3. Step 3: Cross multiply
    2,892.35x = 3,991.47 × 1,713.20
  4. Step 4: Simplify right side
    2,892.35x = 6,838,166.45
  5. Step 5: Solve for x
    x = 6,838,166.45/2,892.35
  6. Step 6: Final answer
    x = 2,364.23

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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.