Home / 3,032.79-4,185.39-1,913.58

Finding the Fourth Proportional to 3,032.79, 4,185.39 and 1,913.58

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Solution

The fourth proportional to 3,032.79, 4,185.39 and 1,913.58 is: 2,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,032.79 : 4,185.39 = 1,913.58 : x
  2. Step 2: Convert to fraction form
    3,032.79/4,185.39 = 1,913.58/x
  3. Step 3: Cross multiply
    3,032.79x = 4,185.39 × 1,913.58
  4. Step 4: Simplify right side
    3,032.79x = 8,009,078.60
  5. Step 5: Solve for x
    x = 8,009,078.60/3,032.79
  6. Step 6: Final answer
    x = 2,640.83

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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.