Home / 5,431.59-8,148.63-1,968.84

Finding the Fourth Proportional to 5,431.59, 8,148.63 and 1,968.84

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Solution

The fourth proportional to 5,431.59, 8,148.63 and 1,968.84 is: 2,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.59 : 8,148.63 = 1,968.84 : x
  2. Step 2: Convert to fraction form
    5,431.59/8,148.63 = 1,968.84/x
  3. Step 3: Cross multiply
    5,431.59x = 8,148.63 × 1,968.84
  4. Step 4: Simplify right side
    5,431.59x = 16,043,348.69
  5. Step 5: Solve for x
    x = 16,043,348.69/5,431.59
  6. Step 6: Final answer
    x = 2,953.71

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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.