Home / 2,289.35-3,157.43-1,994.10

Finding the Fourth Proportional to 2,289.35, 3,157.43 and 1,994.10

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Solution

The fourth proportional to 2,289.35, 3,157.43 and 1,994.10 is: 2,750.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.35 : 3,157.43 = 1,994.10 : x
  2. Step 2: Convert to fraction form
    2,289.35/3,157.43 = 1,994.10/x
  3. Step 3: Cross multiply
    2,289.35x = 3,157.43 × 1,994.10
  4. Step 4: Simplify right side
    2,289.35x = 6,296,221.19
  5. Step 5: Solve for x
    x = 6,296,221.19/2,289.35
  6. Step 6: Final answer
    x = 2,750.23

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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.