Home / 1,549.37-2,137.25-919.26

Finding the Fourth Proportional to 1,549.37, 2,137.25 and 919.26

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Solution

The fourth proportional to 1,549.37, 2,137.25 and 919.26 is: 1,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.37 : 2,137.25 = 919.26 : x
  2. Step 2: Convert to fraction form
    1,549.37/2,137.25 = 919.26/x
  3. Step 3: Cross multiply
    1,549.37x = 2,137.25 × 919.26
  4. Step 4: Simplify right side
    1,549.37x = 1,964,683.84
  5. Step 5: Solve for x
    x = 1,964,683.84/1,549.37
  6. Step 6: Final answer
    x = 1,268.06

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1.5x scale

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.