Home / 2,807.16-3,873.84-1,628.90

Finding the Fourth Proportional to 2,807.16, 3,873.84 and 1,628.90

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Solution

The fourth proportional to 2,807.16, 3,873.84 and 1,628.90 is: 2,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.16 : 3,873.84 = 1,628.90 : x
  2. Step 2: Convert to fraction form
    2,807.16/3,873.84 = 1,628.90/x
  3. Step 3: Cross multiply
    2,807.16x = 3,873.84 × 1,628.90
  4. Step 4: Simplify right side
    2,807.16x = 6,310,097.98
  5. Step 5: Solve for x
    x = 6,310,097.98/2,807.16
  6. Step 6: Final answer
    x = 2,247.86

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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.