Home / 6,954.24-10,431.35-1,689.21

Finding the Fourth Proportional to 6,954.24, 10,431.35 and 1,689.21

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Solution

The fourth proportional to 6,954.24, 10,431.35 and 1,689.21 is: 2,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,954.24 : 10,431.35 = 1,689.21 : x
  2. Step 2: Convert to fraction form
    6,954.24/10,431.35 = 1,689.21/x
  3. Step 3: Cross multiply
    6,954.24x = 10,431.35 × 1,689.21
  4. Step 4: Simplify right side
    6,954.24x = 17,620,771.03
  5. Step 5: Solve for x
    x = 17,620,771.03/6,954.24
  6. Step 6: Final answer
    x = 2,533.82

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.