Home / 7,830.36-10,805.94-4,245.35

Finding the Fourth Proportional to 7,830.36, 10,805.94 and 4,245.35

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Solution

The fourth proportional to 7,830.36, 10,805.94 and 4,245.35 is: 5,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.36 : 10,805.94 = 4,245.35 : x
  2. Step 2: Convert to fraction form
    7,830.36/10,805.94 = 4,245.35/x
  3. Step 3: Cross multiply
    7,830.36x = 10,805.94 × 4,245.35
  4. Step 4: Simplify right side
    7,830.36x = 45,874,943.35
  5. Step 5: Solve for x
    x = 45,874,943.35/7,830.36
  6. Step 6: Final answer
    x = 5,858.60

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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.