Home / 7,107.80-10,661.75-1,842.45

Finding the Fourth Proportional to 7,107.80, 10,661.75 and 1,842.45

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Solution

The fourth proportional to 7,107.80, 10,661.75 and 1,842.45 is: 2,763.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.80 : 10,661.75 = 1,842.45 : x
  2. Step 2: Convert to fraction form
    7,107.80/10,661.75 = 1,842.45/x
  3. Step 3: Cross multiply
    7,107.80x = 10,661.75 × 1,842.45
  4. Step 4: Simplify right side
    7,107.80x = 19,643,732.08
  5. Step 5: Solve for x
    x = 19,643,732.08/7,107.80
  6. Step 6: Final answer
    x = 2,763.69

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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.