Home / 2,816.91-3,887.06-1,637.69

Finding the Fourth Proportional to 2,816.91, 3,887.06 and 1,637.69

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Solution

The fourth proportional to 2,816.91, 3,887.06 and 1,637.69 is: 2,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.91 : 3,887.06 = 1,637.69 : x
  2. Step 2: Convert to fraction form
    2,816.91/3,887.06 = 1,637.69/x
  3. Step 3: Cross multiply
    2,816.91x = 3,887.06 × 1,637.69
  4. Step 4: Simplify right side
    2,816.91x = 6,365,771.67
  5. Step 5: Solve for x
    x = 6,365,771.67/2,816.91
  6. Step 6: Final answer
    x = 2,259.84

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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.