Home / 1,771.21-2,444.26-985.25

Finding the Fourth Proportional to 1,771.21, 2,444.26 and 985.25

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Solution

The fourth proportional to 1,771.21, 2,444.26 and 985.25 is: 1,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.21 : 2,444.26 = 985.25 : x
  2. Step 2: Convert to fraction form
    1,771.21/2,444.26 = 985.25/x
  3. Step 3: Cross multiply
    1,771.21x = 2,444.26 × 985.25
  4. Step 4: Simplify right side
    1,771.21x = 2,408,202.24
  5. Step 5: Solve for x
    x = 2,408,202.24/1,771.21
  6. Step 6: Final answer
    x = 1,359.64

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Double scale
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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.