Home / 2,126.96-3,190.24-740.08

Finding the Fourth Proportional to 2,126.96, 3,190.24 and 740.08

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Solution

The fourth proportional to 2,126.96, 3,190.24 and 740.08 is: 1,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.96 : 3,190.24 = 740.08 : x
  2. Step 2: Convert to fraction form
    2,126.96/3,190.24 = 740.08/x
  3. Step 3: Cross multiply
    2,126.96x = 3,190.24 × 740.08
  4. Step 4: Simplify right side
    2,126.96x = 2,361,032.82
  5. Step 5: Solve for x
    x = 2,361,032.82/2,126.96
  6. Step 6: Final answer
    x = 1,110.05

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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.