Home / 1,394.24-1,924.14-804.80

Finding the Fourth Proportional to 1,394.24, 1,924.14 and 804.80

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Solution

The fourth proportional to 1,394.24, 1,924.14 and 804.80 is: 1,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.24 : 1,924.14 = 804.80 : x
  2. Step 2: Convert to fraction form
    1,394.24/1,924.14 = 804.80/x
  3. Step 3: Cross multiply
    1,394.24x = 1,924.14 × 804.80
  4. Step 4: Simplify right side
    1,394.24x = 1,548,547.87
  5. Step 5: Solve for x
    x = 1,548,547.87/1,394.24
  6. Step 6: Final answer
    x = 1,110.68

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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.