Home / 6,686.56-10,030.77-2,790.07

Finding the Fourth Proportional to 6,686.56, 10,030.77 and 2,790.07

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Solution

The fourth proportional to 6,686.56, 10,030.77 and 2,790.07 is: 4,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.56 : 10,030.77 = 2,790.07 : x
  2. Step 2: Convert to fraction form
    6,686.56/10,030.77 = 2,790.07/x
  3. Step 3: Cross multiply
    6,686.56x = 10,030.77 × 2,790.07
  4. Step 4: Simplify right side
    6,686.56x = 27,986,550.45
  5. Step 5: Solve for x
    x = 27,986,550.45/6,686.56
  6. Step 6: Final answer
    x = 4,185.49

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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.