Home / 2,742.55-4,114.37-1,921.03

Finding the Fourth Proportional to 2,742.55, 4,114.37 and 1,921.03

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Solution

The fourth proportional to 2,742.55, 4,114.37 and 1,921.03 is: 2,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.55 : 4,114.37 = 1,921.03 : x
  2. Step 2: Convert to fraction form
    2,742.55/4,114.37 = 1,921.03/x
  3. Step 3: Cross multiply
    2,742.55x = 4,114.37 × 1,921.03
  4. Step 4: Simplify right side
    2,742.55x = 7,903,828.20
  5. Step 5: Solve for x
    x = 7,903,828.20/2,742.55
  6. Step 6: Final answer
    x = 2,881.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.