Home / 2,816.42-3,887.26-1,637.70

Finding the Fourth Proportional to 2,816.42, 3,887.26 and 1,637.70

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Solution

The fourth proportional to 2,816.42, 3,887.26 and 1,637.70 is: 2,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.42 : 3,887.26 = 1,637.70 : x
  2. Step 2: Convert to fraction form
    2,816.42/3,887.26 = 1,637.70/x
  3. Step 3: Cross multiply
    2,816.42x = 3,887.26 × 1,637.70
  4. Step 4: Simplify right side
    2,816.42x = 6,366,165.70
  5. Step 5: Solve for x
    x = 6,366,165.70/2,816.42
  6. Step 6: Final answer
    x = 2,260.38

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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.