Home / 6,209.52-8,569.12-3,415

Finding the Fourth Proportional to 6,209.52, 8,569.12 and 3,415

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Solution

The fourth proportional to 6,209.52, 8,569.12 and 3,415 is: 4,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,209.52 : 8,569.12 = 3,415 : x
  2. Step 2: Convert to fraction form
    6,209.52/8,569.12 = 3,415/x
  3. Step 3: Cross multiply
    6,209.52x = 8,569.12 × 3,415
  4. Step 4: Simplify right side
    6,209.52x = 29,263,544.80
  5. Step 5: Solve for x
    x = 29,263,544.80/6,209.52
  6. Step 6: Final answer
    x = 4,712.69

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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.