Home / 1,971.18-2,720.46-1,132.02

Finding the Fourth Proportional to 1,971.18, 2,720.46 and 1,132.02

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Solution

The fourth proportional to 1,971.18, 2,720.46 and 1,132.02 is: 1,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.18 : 2,720.46 = 1,132.02 : x
  2. Step 2: Convert to fraction form
    1,971.18/2,720.46 = 1,132.02/x
  3. Step 3: Cross multiply
    1,971.18x = 2,720.46 × 1,132.02
  4. Step 4: Simplify right side
    1,971.18x = 3,079,615.13
  5. Step 5: Solve for x
    x = 3,079,615.13/1,971.18
  6. Step 6: Final answer
    x = 1,562.32

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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.