Home / 1,929.46-2,661.42-1,266.36

Finding the Fourth Proportional to 1,929.46, 2,661.42 and 1,266.36

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Solution

The fourth proportional to 1,929.46, 2,661.42 and 1,266.36 is: 1,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.46 : 2,661.42 = 1,266.36 : x
  2. Step 2: Convert to fraction form
    1,929.46/2,661.42 = 1,266.36/x
  3. Step 3: Cross multiply
    1,929.46x = 2,661.42 × 1,266.36
  4. Step 4: Simplify right side
    1,929.46x = 3,370,315.83
  5. Step 5: Solve for x
    x = 3,370,315.83/1,929.46
  6. Step 6: Final answer
    x = 1,746.77

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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.