Home / 2,896.49-3,997.80-1,638.27

Finding the Fourth Proportional to 2,896.49, 3,997.80 and 1,638.27

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Solution

The fourth proportional to 2,896.49, 3,997.80 and 1,638.27 is: 2,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.49 : 3,997.80 = 1,638.27 : x
  2. Step 2: Convert to fraction form
    2,896.49/3,997.80 = 1,638.27/x
  3. Step 3: Cross multiply
    2,896.49x = 3,997.80 × 1,638.27
  4. Step 4: Simplify right side
    2,896.49x = 6,549,475.81
  5. Step 5: Solve for x
    x = 6,549,475.81/2,896.49
  6. Step 6: Final answer
    x = 2,261.17

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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.