Home / 4,528.50-6,782.71-3,480.78

Finding the Fourth Proportional to 4,528.50, 6,782.71 and 3,480.78

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Solution

The fourth proportional to 4,528.50, 6,782.71 and 3,480.78 is: 5,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,528.50 : 6,782.71 = 3,480.78 : x
  2. Step 2: Convert to fraction form
    4,528.50/6,782.71 = 3,480.78/x
  3. Step 3: Cross multiply
    4,528.50x = 6,782.71 × 3,480.78
  4. Step 4: Simplify right side
    4,528.50x = 23,609,121.31
  5. Step 5: Solve for x
    x = 23,609,121.31/4,528.50
  6. Step 6: Final answer
    x = 5,213.45

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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.