Home / 5,425.36-8,138.30-2,648.74

Finding the Fourth Proportional to 5,425.36, 8,138.30 and 2,648.74

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Solution

The fourth proportional to 5,425.36, 8,138.30 and 2,648.74 is: 3,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.36 : 8,138.30 = 2,648.74 : x
  2. Step 2: Convert to fraction form
    5,425.36/8,138.30 = 2,648.74/x
  3. Step 3: Cross multiply
    5,425.36x = 8,138.30 × 2,648.74
  4. Step 4: Simplify right side
    5,425.36x = 21,556,240.74
  5. Step 5: Solve for x
    x = 21,556,240.74/5,425.36
  6. Step 6: Final answer
    x = 3,973.24

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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.