Home / 1,720.56-2,373.30-1,372.08

Finding the Fourth Proportional to 1,720.56, 2,373.30 and 1,372.08

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Solution

The fourth proportional to 1,720.56, 2,373.30 and 1,372.08 is: 1,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.56 : 2,373.30 = 1,372.08 : x
  2. Step 2: Convert to fraction form
    1,720.56/2,373.30 = 1,372.08/x
  3. Step 3: Cross multiply
    1,720.56x = 2,373.30 × 1,372.08
  4. Step 4: Simplify right side
    1,720.56x = 3,256,357.46
  5. Step 5: Solve for x
    x = 3,256,357.46/1,720.56
  6. Step 6: Final answer
    x = 1,892.61

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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.