Home / 2,076.28-2,858.70-1,684.60

Finding the Fourth Proportional to 2,076.28, 2,858.70 and 1,684.60

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Solution

The fourth proportional to 2,076.28, 2,858.70 and 1,684.60 is: 2,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.28 : 2,858.70 = 1,684.60 : x
  2. Step 2: Convert to fraction form
    2,076.28/2,858.70 = 1,684.60/x
  3. Step 3: Cross multiply
    2,076.28x = 2,858.70 × 1,684.60
  4. Step 4: Simplify right side
    2,076.28x = 4,815,766.02
  5. Step 5: Solve for x
    x = 4,815,766.02/2,076.28
  6. Step 6: Final answer
    x = 2,319.42

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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.