Home / 2,127.53-3,190.43-740.58

Finding the Fourth Proportional to 2,127.53, 3,190.43 and 740.58

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Solution

The fourth proportional to 2,127.53, 3,190.43 and 740.58 is: 1,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.53 : 3,190.43 = 740.58 : x
  2. Step 2: Convert to fraction form
    2,127.53/3,190.43 = 740.58/x
  3. Step 3: Cross multiply
    2,127.53x = 3,190.43 × 740.58
  4. Step 4: Simplify right side
    2,127.53x = 2,362,758.54
  5. Step 5: Solve for x
    x = 2,362,758.54/2,127.53
  6. Step 6: Final answer
    x = 1,110.56

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1.5x scale

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.