Home / 5,078.07-7,612.53-1,790.58

Finding the Fourth Proportional to 5,078.07, 7,612.53 and 1,790.58

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Solution

The fourth proportional to 5,078.07, 7,612.53 and 1,790.58 is: 2,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.07 : 7,612.53 = 1,790.58 : x
  2. Step 2: Convert to fraction form
    5,078.07/7,612.53 = 1,790.58/x
  3. Step 3: Cross multiply
    5,078.07x = 7,612.53 × 1,790.58
  4. Step 4: Simplify right side
    5,078.07x = 13,630,843.97
  5. Step 5: Solve for x
    x = 13,630,843.97/5,078.07
  6. Step 6: Final answer
    x = 2,684.26

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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.