Home / 3,480.75-5,221.37-1,140.14

Finding the Fourth Proportional to 3,480.75, 5,221.37 and 1,140.14

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Solution

The fourth proportional to 3,480.75, 5,221.37 and 1,140.14 is: 1,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.75 : 5,221.37 = 1,140.14 : x
  2. Step 2: Convert to fraction form
    3,480.75/5,221.37 = 1,140.14/x
  3. Step 3: Cross multiply
    3,480.75x = 5,221.37 × 1,140.14
  4. Step 4: Simplify right side
    3,480.75x = 5,953,060.98
  5. Step 5: Solve for x
    x = 5,953,060.98/3,480.75
  6. Step 6: Final answer
    x = 1,710.28

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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.