Home / 2,118.96-2,922.75-1,373.76

Finding the Fourth Proportional to 2,118.96, 2,922.75 and 1,373.76

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Solution

The fourth proportional to 2,118.96, 2,922.75 and 1,373.76 is: 1,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.96 : 2,922.75 = 1,373.76 : x
  2. Step 2: Convert to fraction form
    2,118.96/2,922.75 = 1,373.76/x
  3. Step 3: Cross multiply
    2,118.96x = 2,922.75 × 1,373.76
  4. Step 4: Simplify right side
    2,118.96x = 4,015,157.04
  5. Step 5: Solve for x
    x = 4,015,157.04/2,118.96
  6. Step 6: Final answer
    x = 1,894.87

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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.