Home / 3,106.02-4,285.46-2,160.75

Finding the Fourth Proportional to 3,106.02, 4,285.46 and 2,160.75

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Solution

The fourth proportional to 3,106.02, 4,285.46 and 2,160.75 is: 2,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.02 : 4,285.46 = 2,160.75 : x
  2. Step 2: Convert to fraction form
    3,106.02/4,285.46 = 2,160.75/x
  3. Step 3: Cross multiply
    3,106.02x = 4,285.46 × 2,160.75
  4. Step 4: Simplify right side
    3,106.02x = 9,259,796.89
  5. Step 5: Solve for x
    x = 9,259,796.89/3,106.02
  6. Step 6: Final answer
    x = 2,981.24

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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.