Home / 2,836.36-3,913.60-1,657.20

Finding the Fourth Proportional to 2,836.36, 3,913.60 and 1,657.20

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Solution

The fourth proportional to 2,836.36, 3,913.60 and 1,657.20 is: 2,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.36 : 3,913.60 = 1,657.20 : x
  2. Step 2: Convert to fraction form
    2,836.36/3,913.60 = 1,657.20/x
  3. Step 3: Cross multiply
    2,836.36x = 3,913.60 × 1,657.20
  4. Step 4: Simplify right side
    2,836.36x = 6,485,620.55
  5. Step 5: Solve for x
    x = 6,485,620.55/2,836.36
  6. Step 6: Final answer
    x = 2,286.60

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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.