Home / 1,720.36-2,373.51-1,090.72

Finding the Fourth Proportional to 1,720.36, 2,373.51 and 1,090.72

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Solution

The fourth proportional to 1,720.36, 2,373.51 and 1,090.72 is: 1,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.36 : 2,373.51 = 1,090.72 : x
  2. Step 2: Convert to fraction form
    1,720.36/2,373.51 = 1,090.72/x
  3. Step 3: Cross multiply
    1,720.36x = 2,373.51 × 1,090.72
  4. Step 4: Simplify right side
    1,720.36x = 2,588,834.83
  5. Step 5: Solve for x
    x = 2,588,834.83/1,720.36
  6. Step 6: Final answer
    x = 1,504.82

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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.