Home / 1,753.21-2,419.85-1,090.57

Finding the Fourth Proportional to 1,753.21, 2,419.85 and 1,090.57

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Solution

The fourth proportional to 1,753.21, 2,419.85 and 1,090.57 is: 1,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.21 : 2,419.85 = 1,090.57 : x
  2. Step 2: Convert to fraction form
    1,753.21/2,419.85 = 1,090.57/x
  3. Step 3: Cross multiply
    1,753.21x = 2,419.85 × 1,090.57
  4. Step 4: Simplify right side
    1,753.21x = 2,639,015.81
  5. Step 5: Solve for x
    x = 2,639,015.81/1,753.21
  6. Step 6: Final answer
    x = 1,505.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.