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Finding the Fourth Proportional to 5,621.04, 7,759.08 and 4,571.28

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Solution

The fourth proportional to 5,621.04, 7,759.08 and 4,571.28 is: 6,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.04 : 7,759.08 = 4,571.28 : x
  2. Step 2: Convert to fraction form
    5,621.04/7,759.08 = 4,571.28/x
  3. Step 3: Cross multiply
    5,621.04x = 7,759.08 × 4,571.28
  4. Step 4: Simplify right side
    5,621.04x = 35,468,927.22
  5. Step 5: Solve for x
    x = 35,468,927.22/5,621.04
  6. Step 6: Final answer
    x = 6,310.03

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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.