Home / 2,170.35-2,994.86-1,603.49

Finding the Fourth Proportional to 2,170.35, 2,994.86 and 1,603.49

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Solution

The fourth proportional to 2,170.35, 2,994.86 and 1,603.49 is: 2,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.35 : 2,994.86 = 1,603.49 : x
  2. Step 2: Convert to fraction form
    2,170.35/2,994.86 = 1,603.49/x
  3. Step 3: Cross multiply
    2,170.35x = 2,994.86 × 1,603.49
  4. Step 4: Simplify right side
    2,170.35x = 4,802,205.07
  5. Step 5: Solve for x
    x = 4,802,205.07/2,170.35
  6. Step 6: Final answer
    x = 2,212.64

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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.