Home / 2,127.12-3,190.93-740.33

Finding the Fourth Proportional to 2,127.12, 3,190.93 and 740.33

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Solution

The fourth proportional to 2,127.12, 3,190.93 and 740.33 is: 1,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.12 : 3,190.93 = 740.33 : x
  2. Step 2: Convert to fraction form
    2,127.12/3,190.93 = 740.33/x
  3. Step 3: Cross multiply
    2,127.12x = 3,190.93 × 740.33
  4. Step 4: Simplify right side
    2,127.12x = 2,362,354.20
  5. Step 5: Solve for x
    x = 2,362,354.20/2,127.12
  6. Step 6: Final answer
    x = 1,110.59

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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.