Home / 4,515.72-6,772.38-3,785.64

Finding the Fourth Proportional to 4,515.72, 6,772.38 and 3,785.64

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Solution

The fourth proportional to 4,515.72, 6,772.38 and 3,785.64 is: 5,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,515.72 : 6,772.38 = 3,785.64 : x
  2. Step 2: Convert to fraction form
    4,515.72/6,772.38 = 3,785.64/x
  3. Step 3: Cross multiply
    4,515.72x = 6,772.38 × 3,785.64
  4. Step 4: Simplify right side
    4,515.72x = 25,637,792.62
  5. Step 5: Solve for x
    x = 25,637,792.62/4,515.72
  6. Step 6: Final answer
    x = 5,677.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.