Home / 2,119.22-2,921.43-1,373.01

Finding the Fourth Proportional to 2,119.22, 2,921.43 and 1,373.01

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Solution

The fourth proportional to 2,119.22, 2,921.43 and 1,373.01 is: 1,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.22 : 2,921.43 = 1,373.01 : x
  2. Step 2: Convert to fraction form
    2,119.22/2,921.43 = 1,373.01/x
  3. Step 3: Cross multiply
    2,119.22x = 2,921.43 × 1,373.01
  4. Step 4: Simplify right side
    2,119.22x = 4,011,152.60
  5. Step 5: Solve for x
    x = 4,011,152.60/2,119.22
  6. Step 6: Final answer
    x = 1,892.75

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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.