Home / 1,929.26-2,894.36-561.26

Finding the Fourth Proportional to 1,929.26, 2,894.36 and 561.26

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Solution

The fourth proportional to 1,929.26, 2,894.36 and 561.26 is: 842.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.26 : 2,894.36 = 561.26 : x
  2. Step 2: Convert to fraction form
    1,929.26/2,894.36 = 561.26/x
  3. Step 3: Cross multiply
    1,929.26x = 2,894.36 × 561.26
  4. Step 4: Simplify right side
    1,929.26x = 1,624,488.49
  5. Step 5: Solve for x
    x = 1,624,488.49/1,929.26
  6. Step 6: Final answer
    x = 842.03

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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.