Home / 1,904.04-2,857.10-1,325.80

Finding the Fourth Proportional to 1,904.04, 2,857.10 and 1,325.80

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Solution

The fourth proportional to 1,904.04, 2,857.10 and 1,325.80 is: 1,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.04 : 2,857.10 = 1,325.80 : x
  2. Step 2: Convert to fraction form
    1,904.04/2,857.10 = 1,325.80/x
  3. Step 3: Cross multiply
    1,904.04x = 2,857.10 × 1,325.80
  4. Step 4: Simplify right side
    1,904.04x = 3,787,943.18
  5. Step 5: Solve for x
    x = 3,787,943.18/1,904.04
  6. Step 6: Final answer
    x = 1,989.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.