Home / 2,036.88-2,809.85-1,408.05

Finding the Fourth Proportional to 2,036.88, 2,809.85 and 1,408.05

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Solution

The fourth proportional to 2,036.88, 2,809.85 and 1,408.05 is: 1,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,036.88 : 2,809.85 = 1,408.05 : x
  2. Step 2: Convert to fraction form
    2,036.88/2,809.85 = 1,408.05/x
  3. Step 3: Cross multiply
    2,036.88x = 2,809.85 × 1,408.05
  4. Step 4: Simplify right side
    2,036.88x = 3,956,402.25
  5. Step 5: Solve for x
    x = 3,956,402.25/2,036.88
  6. Step 6: Final answer
    x = 1,942.38

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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.