Home / 5,646.75-7,792.78-3,408.58

Finding the Fourth Proportional to 5,646.75, 7,792.78 and 3,408.58

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Solution

The fourth proportional to 5,646.75, 7,792.78 and 3,408.58 is: 4,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.75 : 7,792.78 = 3,408.58 : x
  2. Step 2: Convert to fraction form
    5,646.75/7,792.78 = 3,408.58/x
  3. Step 3: Cross multiply
    5,646.75x = 7,792.78 × 3,408.58
  4. Step 4: Simplify right side
    5,646.75x = 26,562,314.05
  5. Step 5: Solve for x
    x = 26,562,314.05/5,646.75
  6. Step 6: Final answer
    x = 4,704.00

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Half scale
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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.