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Finding the Fourth Proportional to 1,244.77, 1,865.61 and 1,090.99

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Solution

The fourth proportional to 1,244.77, 1,865.61 and 1,090.99 is: 1,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.77 : 1,865.61 = 1,090.99 : x
  2. Step 2: Convert to fraction form
    1,244.77/1,865.61 = 1,090.99/x
  3. Step 3: Cross multiply
    1,244.77x = 1,865.61 × 1,090.99
  4. Step 4: Simplify right side
    1,244.77x = 2,035,361.85
  5. Step 5: Solve for x
    x = 2,035,361.85/1,244.77
  6. Step 6: Final answer
    x = 1,635.14

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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.