Home / 7,821.78-10,794.06-4,285.02

Finding the Fourth Proportional to 7,821.78, 10,794.06 and 4,285.02

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Solution

The fourth proportional to 7,821.78, 10,794.06 and 4,285.02 is: 5,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.78 : 10,794.06 = 4,285.02 : x
  2. Step 2: Convert to fraction form
    7,821.78/10,794.06 = 4,285.02/x
  3. Step 3: Cross multiply
    7,821.78x = 10,794.06 × 4,285.02
  4. Step 4: Simplify right side
    7,821.78x = 46,252,762.98
  5. Step 5: Solve for x
    x = 46,252,762.98/7,821.78
  6. Step 6: Final answer
    x = 5,913.33

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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.