Home / 5,228.16-7,842.24-2,148

Finding the Fourth Proportional to 5,228.16, 7,842.24 and 2,148

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Solution

The fourth proportional to 5,228.16, 7,842.24 and 2,148 is: 3,222

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.16 : 7,842.24 = 2,148 : x
  2. Step 2: Convert to fraction form
    5,228.16/7,842.24 = 2,148/x
  3. Step 3: Cross multiply
    5,228.16x = 7,842.24 × 2,148
  4. Step 4: Simplify right side
    5,228.16x = 16,845,131.52
  5. Step 5: Solve for x
    x = 16,845,131.52/5,228.16
  6. Step 6: Final answer
    x = 3,222

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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.