Home / 5,276.48-7,912.08-2,155.64

Finding the Fourth Proportional to 5,276.48, 7,912.08 and 2,155.64

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Solution

The fourth proportional to 5,276.48, 7,912.08 and 2,155.64 is: 3,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.48 : 7,912.08 = 2,155.64 : x
  2. Step 2: Convert to fraction form
    5,276.48/7,912.08 = 2,155.64/x
  3. Step 3: Cross multiply
    5,276.48x = 7,912.08 × 2,155.64
  4. Step 4: Simplify right side
    5,276.48x = 17,055,556.57
  5. Step 5: Solve for x
    x = 17,055,556.57/5,276.48
  6. Step 6: Final answer
    x = 3,232.38

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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.