Home / 2,836.08-3,912.36-1,656.90

Finding the Fourth Proportional to 2,836.08, 3,912.36 and 1,656.90

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Solution

The fourth proportional to 2,836.08, 3,912.36 and 1,656.90 is: 2,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.08 : 3,912.36 = 1,656.90 : x
  2. Step 2: Convert to fraction form
    2,836.08/3,912.36 = 1,656.90/x
  3. Step 3: Cross multiply
    2,836.08x = 3,912.36 × 1,656.90
  4. Step 4: Simplify right side
    2,836.08x = 6,482,389.28
  5. Step 5: Solve for x
    x = 6,482,389.28/2,836.08
  6. Step 6: Final answer
    x = 2,285.69

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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.