Home / 1,972.67-2,719.53-1,342.22

Finding the Fourth Proportional to 1,972.67, 2,719.53 and 1,342.22

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Solution

The fourth proportional to 1,972.67, 2,719.53 and 1,342.22 is: 1,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.67 : 2,719.53 = 1,342.22 : x
  2. Step 2: Convert to fraction form
    1,972.67/2,719.53 = 1,342.22/x
  3. Step 3: Cross multiply
    1,972.67x = 2,719.53 × 1,342.22
  4. Step 4: Simplify right side
    1,972.67x = 3,650,193.96
  5. Step 5: Solve for x
    x = 3,650,193.96/1,972.67
  6. Step 6: Final answer
    x = 1,850.39

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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.