Home / 4,181.20-6,271.80-1,061.20

Finding the Fourth Proportional to 4,181.20, 6,271.80 and 1,061.20

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Solution

The fourth proportional to 4,181.20, 6,271.80 and 1,061.20 is: 1,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,181.20 : 6,271.80 = 1,061.20 : x
  2. Step 2: Convert to fraction form
    4,181.20/6,271.80 = 1,061.20/x
  3. Step 3: Cross multiply
    4,181.20x = 6,271.80 × 1,061.20
  4. Step 4: Simplify right side
    4,181.20x = 6,655,634.16
  5. Step 5: Solve for x
    x = 6,655,634.16/4,181.20
  6. Step 6: Final answer
    x = 1,591.80

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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.