Home / 2,011.36-3,003.28-1,801.78

Finding the Fourth Proportional to 2,011.36, 3,003.28 and 1,801.78

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Solution

The fourth proportional to 2,011.36, 3,003.28 and 1,801.78 is: 2,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.36 : 3,003.28 = 1,801.78 : x
  2. Step 2: Convert to fraction form
    2,011.36/3,003.28 = 1,801.78/x
  3. Step 3: Cross multiply
    2,011.36x = 3,003.28 × 1,801.78
  4. Step 4: Simplify right side
    2,011.36x = 5,411,249.84
  5. Step 5: Solve for x
    x = 5,411,249.84/2,011.36
  6. Step 6: Final answer
    x = 2,690.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.