Home / 3,314.52-4,574.16-1,917

Finding the Fourth Proportional to 3,314.52, 4,574.16 and 1,917

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Solution

The fourth proportional to 3,314.52, 4,574.16 and 1,917 is: 2,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.52 : 4,574.16 = 1,917 : x
  2. Step 2: Convert to fraction form
    3,314.52/4,574.16 = 1,917/x
  3. Step 3: Cross multiply
    3,314.52x = 4,574.16 × 1,917
  4. Step 4: Simplify right side
    3,314.52x = 8,768,664.72
  5. Step 5: Solve for x
    x = 8,768,664.72/3,314.52
  6. Step 6: Final answer
    x = 2,645.53

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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.