Home / 1,720.26-2,371.56-1,470.48

Finding the Fourth Proportional to 1,720.26, 2,371.56 and 1,470.48

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Solution

The fourth proportional to 1,720.26, 2,371.56 and 1,470.48 is: 2,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.26 : 2,371.56 = 1,470.48 : x
  2. Step 2: Convert to fraction form
    1,720.26/2,371.56 = 1,470.48/x
  3. Step 3: Cross multiply
    1,720.26x = 2,371.56 × 1,470.48
  4. Step 4: Simplify right side
    1,720.26x = 3,487,331.55
  5. Step 5: Solve for x
    x = 3,487,331.55/1,720.26
  6. Step 6: Final answer
    x = 2,027.21

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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.