Home / 2,655.55-3,984.31-1,095.69

Finding the Fourth Proportional to 2,655.55, 3,984.31 and 1,095.69

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Solution

The fourth proportional to 2,655.55, 3,984.31 and 1,095.69 is: 1,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.55 : 3,984.31 = 1,095.69 : x
  2. Step 2: Convert to fraction form
    2,655.55/3,984.31 = 1,095.69/x
  3. Step 3: Cross multiply
    2,655.55x = 3,984.31 × 1,095.69
  4. Step 4: Simplify right side
    2,655.55x = 4,365,582.08
  5. Step 5: Solve for x
    x = 4,365,582.08/2,655.55
  6. Step 6: Final answer
    x = 1,643.94

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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.