Home / 6,858.21-10,287.32-1,928.35

Finding the Fourth Proportional to 6,858.21, 10,287.32 and 1,928.35

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Solution

The fourth proportional to 6,858.21, 10,287.32 and 1,928.35 is: 2,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.21 : 10,287.32 = 1,928.35 : x
  2. Step 2: Convert to fraction form
    6,858.21/10,287.32 = 1,928.35/x
  3. Step 3: Cross multiply
    6,858.21x = 10,287.32 × 1,928.35
  4. Step 4: Simplify right side
    6,858.21x = 19,837,518.16
  5. Step 5: Solve for x
    x = 19,837,518.16/6,858.21
  6. Step 6: Final answer
    x = 2,892.52

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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.