Home / 1,929.88-2,894.01-613.27

Finding the Fourth Proportional to 1,929.88, 2,894.01 and 613.27

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Solution

The fourth proportional to 1,929.88, 2,894.01 and 613.27 is: 919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.88 : 2,894.01 = 613.27 : x
  2. Step 2: Convert to fraction form
    1,929.88/2,894.01 = 613.27/x
  3. Step 3: Cross multiply
    1,929.88x = 2,894.01 × 613.27
  4. Step 4: Simplify right side
    1,929.88x = 1,774,809.51
  5. Step 5: Solve for x
    x = 1,774,809.51/1,929.88
  6. Step 6: Final answer
    x = 919.65

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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.