Home / 6,412.77-9,618.89-3,813.75

Finding the Fourth Proportional to 6,412.77, 9,618.89 and 3,813.75

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Solution

The fourth proportional to 6,412.77, 9,618.89 and 3,813.75 is: 5,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.77 : 9,618.89 = 3,813.75 : x
  2. Step 2: Convert to fraction form
    6,412.77/9,618.89 = 3,813.75/x
  3. Step 3: Cross multiply
    6,412.77x = 9,618.89 × 3,813.75
  4. Step 4: Simplify right side
    6,412.77x = 36,684,022.67
  5. Step 5: Solve for x
    x = 36,684,022.67/6,412.77
  6. Step 6: Final answer
    x = 5,720.46

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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.