Home / 4,661.40-6,986.16-2,190.77

Finding the Fourth Proportional to 4,661.40, 6,986.16 and 2,190.77

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Solution

The fourth proportional to 4,661.40, 6,986.16 and 2,190.77 is: 3,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.40 : 6,986.16 = 2,190.77 : x
  2. Step 2: Convert to fraction form
    4,661.40/6,986.16 = 2,190.77/x
  3. Step 3: Cross multiply
    4,661.40x = 6,986.16 × 2,190.77
  4. Step 4: Simplify right side
    4,661.40x = 15,305,069.74
  5. Step 5: Solve for x
    x = 15,305,069.74/4,661.40
  6. Step 6: Final answer
    x = 3,283.36

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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.