Home / 4,298.25-6,447.75-1,220.25

Finding the Fourth Proportional to 4,298.25, 6,447.75 and 1,220.25

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Solution

The fourth proportional to 4,298.25, 6,447.75 and 1,220.25 is: 1,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.25 : 6,447.75 = 1,220.25 : x
  2. Step 2: Convert to fraction form
    4,298.25/6,447.75 = 1,220.25/x
  3. Step 3: Cross multiply
    4,298.25x = 6,447.75 × 1,220.25
  4. Step 4: Simplify right side
    4,298.25x = 7,867,866.94
  5. Step 5: Solve for x
    x = 7,867,866.94/4,298.25
  6. Step 6: Final answer
    x = 1,830.48

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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.