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Finding the Fourth Proportional to 2,039.36, 3,059.48 and 740.81

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Solution

The fourth proportional to 2,039.36, 3,059.48 and 740.81 is: 1,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.36 : 3,059.48 = 740.81 : x
  2. Step 2: Convert to fraction form
    2,039.36/3,059.48 = 740.81/x
  3. Step 3: Cross multiply
    2,039.36x = 3,059.48 × 740.81
  4. Step 4: Simplify right side
    2,039.36x = 2,266,502.88
  5. Step 5: Solve for x
    x = 2,266,502.88/2,039.36
  6. Step 6: Final answer
    x = 1,111.38

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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.