Home / 3,411.09-4,707.35-1,918.87

Finding the Fourth Proportional to 3,411.09, 4,707.35 and 1,918.87

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Solution

The fourth proportional to 3,411.09, 4,707.35 and 1,918.87 is: 2,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.09 : 4,707.35 = 1,918.87 : x
  2. Step 2: Convert to fraction form
    3,411.09/4,707.35 = 1,918.87/x
  3. Step 3: Cross multiply
    3,411.09x = 4,707.35 × 1,918.87
  4. Step 4: Simplify right side
    3,411.09x = 9,032,778.53
  5. Step 5: Solve for x
    x = 9,032,778.53/3,411.09
  6. Step 6: Final answer
    x = 2,648.06

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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.