Home / 2,102.12-2,900.58-1,170.60

Finding the Fourth Proportional to 2,102.12, 2,900.58 and 1,170.60

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Solution

The fourth proportional to 2,102.12, 2,900.58 and 1,170.60 is: 1,615.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.12 : 2,900.58 = 1,170.60 : x
  2. Step 2: Convert to fraction form
    2,102.12/2,900.58 = 1,170.60/x
  3. Step 3: Cross multiply
    2,102.12x = 2,900.58 × 1,170.60
  4. Step 4: Simplify right side
    2,102.12x = 3,395,418.95
  5. Step 5: Solve for x
    x = 3,395,418.95/2,102.12
  6. Step 6: Final answer
    x = 1,615.24

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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.