Home / 1,971.37-2,720.57-1,132.31

Finding the Fourth Proportional to 1,971.37, 2,720.57 and 1,132.31

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Solution

The fourth proportional to 1,971.37, 2,720.57 and 1,132.31 is: 1,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.37 : 2,720.57 = 1,132.31 : x
  2. Step 2: Convert to fraction form
    1,971.37/2,720.57 = 1,132.31/x
  3. Step 3: Cross multiply
    1,971.37x = 2,720.57 × 1,132.31
  4. Step 4: Simplify right side
    1,971.37x = 3,080,515.01
  5. Step 5: Solve for x
    x = 3,080,515.01/1,971.37
  6. Step 6: Final answer
    x = 1,562.63

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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.