Home / 4,271.05-6,405.99-1,151.20

Finding the Fourth Proportional to 4,271.05, 6,405.99 and 1,151.20

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Solution

The fourth proportional to 4,271.05, 6,405.99 and 1,151.20 is: 1,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.05 : 6,405.99 = 1,151.20 : x
  2. Step 2: Convert to fraction form
    4,271.05/6,405.99 = 1,151.20/x
  3. Step 3: Cross multiply
    4,271.05x = 6,405.99 × 1,151.20
  4. Step 4: Simplify right side
    4,271.05x = 7,374,575.69
  5. Step 5: Solve for x
    x = 7,374,575.69/4,271.05
  6. Step 6: Final answer
    x = 1,726.64

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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.