Home / 2,892.04-3,989.10-1,845.40

Finding the Fourth Proportional to 2,892.04, 3,989.10 and 1,845.40

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Solution

The fourth proportional to 2,892.04, 3,989.10 and 1,845.40 is: 2,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.04 : 3,989.10 = 1,845.40 : x
  2. Step 2: Convert to fraction form
    2,892.04/3,989.10 = 1,845.40/x
  3. Step 3: Cross multiply
    2,892.04x = 3,989.10 × 1,845.40
  4. Step 4: Simplify right side
    2,892.04x = 7,361,485.14
  5. Step 5: Solve for x
    x = 7,361,485.14/2,892.04
  6. Step 6: Final answer
    x = 2,545.43

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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.