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Finding the Fourth Proportional to 4,509.75, 6,223.74 and 2,520.39

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Solution

The fourth proportional to 4,509.75, 6,223.74 and 2,520.39 is: 3,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.75 : 6,223.74 = 2,520.39 : x
  2. Step 2: Convert to fraction form
    4,509.75/6,223.74 = 2,520.39/x
  3. Step 3: Cross multiply
    4,509.75x = 6,223.74 × 2,520.39
  4. Step 4: Simplify right side
    4,509.75x = 15,686,252.06
  5. Step 5: Solve for x
    x = 15,686,252.06/4,509.75
  6. Step 6: Final answer
    x = 3,478.30

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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.