Home / 1,720.30-2,373.15-1,090.66

Finding the Fourth Proportional to 1,720.30, 2,373.15 and 1,090.66

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Solution

The fourth proportional to 1,720.30, 2,373.15 and 1,090.66 is: 1,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.30 : 2,373.15 = 1,090.66 : x
  2. Step 2: Convert to fraction form
    1,720.30/2,373.15 = 1,090.66/x
  3. Step 3: Cross multiply
    1,720.30x = 2,373.15 × 1,090.66
  4. Step 4: Simplify right side
    1,720.30x = 2,588,299.78
  5. Step 5: Solve for x
    x = 2,588,299.78/1,720.30
  6. Step 6: Final answer
    x = 1,504.56

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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.