Home / 1,394.10-1,924.14-804.55

Finding the Fourth Proportional to 1,394.10, 1,924.14 and 804.55

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Solution

The fourth proportional to 1,394.10, 1,924.14 and 804.55 is: 1,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.10 : 1,924.14 = 804.55 : x
  2. Step 2: Convert to fraction form
    1,394.10/1,924.14 = 804.55/x
  3. Step 3: Cross multiply
    1,394.10x = 1,924.14 × 804.55
  4. Step 4: Simplify right side
    1,394.10x = 1,548,062.81
  5. Step 5: Solve for x
    x = 1,548,062.81/1,394.10
  6. Step 6: Final answer
    x = 1,110.44

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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.