Home / 2,135.50-2,949.79-1,637.27

Finding the Fourth Proportional to 2,135.50, 2,949.79 and 1,637.27

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Solution

The fourth proportional to 2,135.50, 2,949.79 and 1,637.27 is: 2,261.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.50 : 2,949.79 = 1,637.27 : x
  2. Step 2: Convert to fraction form
    2,135.50/2,949.79 = 1,637.27/x
  3. Step 3: Cross multiply
    2,135.50x = 2,949.79 × 1,637.27
  4. Step 4: Simplify right side
    2,135.50x = 4,829,602.67
  5. Step 5: Solve for x
    x = 4,829,602.67/2,135.50
  6. Step 6: Final answer
    x = 2,261.58

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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.