Home / 2,816.48-3,887.12-1,637.66

Finding the Fourth Proportional to 2,816.48, 3,887.12 and 1,637.66

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Solution

The fourth proportional to 2,816.48, 3,887.12 and 1,637.66 is: 2,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.48 : 3,887.12 = 1,637.66 : x
  2. Step 2: Convert to fraction form
    2,816.48/3,887.12 = 1,637.66/x
  3. Step 3: Cross multiply
    2,816.48x = 3,887.12 × 1,637.66
  4. Step 4: Simplify right side
    2,816.48x = 6,365,794.75
  5. Step 5: Solve for x
    x = 6,365,794.75/2,816.48
  6. Step 6: Final answer
    x = 2,260.19

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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.