Home / 3,478.32-5,220.89-2,551.23

Finding the Fourth Proportional to 3,478.32, 5,220.89 and 2,551.23

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Solution

The fourth proportional to 3,478.32, 5,220.89 and 2,551.23 is: 3,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.32 : 5,220.89 = 2,551.23 : x
  2. Step 2: Convert to fraction form
    3,478.32/5,220.89 = 2,551.23/x
  3. Step 3: Cross multiply
    3,478.32x = 5,220.89 × 2,551.23
  4. Step 4: Simplify right side
    3,478.32x = 13,319,704.25
  5. Step 5: Solve for x
    x = 13,319,704.25/3,478.32
  6. Step 6: Final answer
    x = 3,829.36

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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.