Home / 1,994.64-2,749.75-1,403.34

Finding the Fourth Proportional to 1,994.64, 2,749.75 and 1,403.34

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Solution

The fourth proportional to 1,994.64, 2,749.75 and 1,403.34 is: 1,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.64 : 2,749.75 = 1,403.34 : x
  2. Step 2: Convert to fraction form
    1,994.64/2,749.75 = 1,403.34/x
  3. Step 3: Cross multiply
    1,994.64x = 2,749.75 × 1,403.34
  4. Step 4: Simplify right side
    1,994.64x = 3,858,827.15
  5. Step 5: Solve for x
    x = 3,858,827.15/1,994.64
  6. Step 6: Final answer
    x = 1,934.60

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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.