Home / 5,431.14-8,146.74-1,968.30

Finding the Fourth Proportional to 5,431.14, 8,146.74 and 1,968.30

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Solution

The fourth proportional to 5,431.14, 8,146.74 and 1,968.30 is: 2,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.14 : 8,146.74 = 1,968.30 : x
  2. Step 2: Convert to fraction form
    5,431.14/8,146.74 = 1,968.30/x
  3. Step 3: Cross multiply
    5,431.14x = 8,146.74 × 1,968.30
  4. Step 4: Simplify right side
    5,431.14x = 16,035,228.34
  5. Step 5: Solve for x
    x = 16,035,228.34/5,431.14
  6. Step 6: Final answer
    x = 2,952.46

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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.