Home / 5,477.25-8,220.75-2,557.20

Finding the Fourth Proportional to 5,477.25, 8,220.75 and 2,557.20

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Solution

The fourth proportional to 5,477.25, 8,220.75 and 2,557.20 is: 3,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.25 : 8,220.75 = 2,557.20 : x
  2. Step 2: Convert to fraction form
    5,477.25/8,220.75 = 2,557.20/x
  3. Step 3: Cross multiply
    5,477.25x = 8,220.75 × 2,557.20
  4. Step 4: Simplify right side
    5,477.25x = 21,022,101.90
  5. Step 5: Solve for x
    x = 21,022,101.90/5,477.25
  6. Step 6: Final answer
    x = 3,838.08

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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.