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Finding the Fourth Proportional to 5,654.21, 8,483.87 and 1,959.12

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Solution

The fourth proportional to 5,654.21, 8,483.87 and 1,959.12 is: 2,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.21 : 8,483.87 = 1,959.12 : x
  2. Step 2: Convert to fraction form
    5,654.21/8,483.87 = 1,959.12/x
  3. Step 3: Cross multiply
    5,654.21x = 8,483.87 × 1,959.12
  4. Step 4: Simplify right side
    5,654.21x = 16,620,924.29
  5. Step 5: Solve for x
    x = 16,620,924.29/5,654.21
  6. Step 6: Final answer
    x = 2,939.57

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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.