Home / 7,825.20-10,798.60-4,288.36

Finding the Fourth Proportional to 7,825.20, 10,798.60 and 4,288.36

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Solution

The fourth proportional to 7,825.20, 10,798.60 and 4,288.36 is: 5,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.20 : 10,798.60 = 4,288.36 : x
  2. Step 2: Convert to fraction form
    7,825.20/10,798.60 = 4,288.36/x
  3. Step 3: Cross multiply
    7,825.20x = 10,798.60 × 4,288.36
  4. Step 4: Simplify right side
    7,825.20x = 46,308,284.30
  5. Step 5: Solve for x
    x = 46,308,284.30/7,825.20
  6. Step 6: Final answer
    x = 5,917.84

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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.