Home / 1,817.19-2,490.26-1,642.23

Finding the Fourth Proportional to 1,817.19, 2,490.26 and 1,642.23

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Solution

The fourth proportional to 1,817.19, 2,490.26 and 1,642.23 is: 2,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.19 : 2,490.26 = 1,642.23 : x
  2. Step 2: Convert to fraction form
    1,817.19/2,490.26 = 1,642.23/x
  3. Step 3: Cross multiply
    1,817.19x = 2,490.26 × 1,642.23
  4. Step 4: Simplify right side
    1,817.19x = 4,089,571.47
  5. Step 5: Solve for x
    x = 4,089,571.47/1,817.19
  6. Step 6: Final answer
    x = 2,250.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.