Home / 3,972.56-5,480.54-2,556

Finding the Fourth Proportional to 3,972.56, 5,480.54 and 2,556

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Solution

The fourth proportional to 3,972.56, 5,480.54 and 2,556 is: 3,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.56 : 5,480.54 = 2,556 : x
  2. Step 2: Convert to fraction form
    3,972.56/5,480.54 = 2,556/x
  3. Step 3: Cross multiply
    3,972.56x = 5,480.54 × 2,556
  4. Step 4: Simplify right side
    3,972.56x = 14,008,247.46
  5. Step 5: Solve for x
    x = 14,008,247.46/3,972.56
  6. Step 6: Final answer
    x = 3,526.26

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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.