Home / 3,411.11-4,707.60-1,918.94

Finding the Fourth Proportional to 3,411.11, 4,707.60 and 1,918.94

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Solution

The fourth proportional to 3,411.11, 4,707.60 and 1,918.94 is: 2,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.11 : 4,707.60 = 1,918.94 : x
  2. Step 2: Convert to fraction form
    3,411.11/4,707.60 = 1,918.94/x
  3. Step 3: Cross multiply
    3,411.11x = 4,707.60 × 1,918.94
  4. Step 4: Simplify right side
    3,411.11x = 9,033,578.41
  5. Step 5: Solve for x
    x = 9,033,578.41/3,411.11
  6. Step 6: Final answer
    x = 2,648.28

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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.