Home / 5,215.36-7,823.52-2,095.60

Finding the Fourth Proportional to 5,215.36, 7,823.52 and 2,095.60

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Solution

The fourth proportional to 5,215.36, 7,823.52 and 2,095.60 is: 3,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.36 : 7,823.52 = 2,095.60 : x
  2. Step 2: Convert to fraction form
    5,215.36/7,823.52 = 2,095.60/x
  3. Step 3: Cross multiply
    5,215.36x = 7,823.52 × 2,095.60
  4. Step 4: Simplify right side
    5,215.36x = 16,394,968.51
  5. Step 5: Solve for x
    x = 16,394,968.51/5,215.36
  6. Step 6: Final answer
    x = 3,143.59

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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.