Home / 5,428.72-7,495.44-4,794.40

Finding the Fourth Proportional to 5,428.72, 7,495.44 and 4,794.40

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Solution

The fourth proportional to 5,428.72, 7,495.44 and 4,794.40 is: 6,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.72 : 7,495.44 = 4,794.40 : x
  2. Step 2: Convert to fraction form
    5,428.72/7,495.44 = 4,794.40/x
  3. Step 3: Cross multiply
    5,428.72x = 7,495.44 × 4,794.40
  4. Step 4: Simplify right side
    5,428.72x = 35,936,137.54
  5. Step 5: Solve for x
    x = 35,936,137.54/5,428.72
  6. Step 6: Final answer
    x = 6,619.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.