Home / 4,760.76-7,141.80-1,986.79

Finding the Fourth Proportional to 4,760.76, 7,141.80 and 1,986.79

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Solution

The fourth proportional to 4,760.76, 7,141.80 and 1,986.79 is: 2,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.76 : 7,141.80 = 1,986.79 : x
  2. Step 2: Convert to fraction form
    4,760.76/7,141.80 = 1,986.79/x
  3. Step 3: Cross multiply
    4,760.76x = 7,141.80 × 1,986.79
  4. Step 4: Simplify right side
    4,760.76x = 14,189,286.16
  5. Step 5: Solve for x
    x = 14,189,286.16/4,760.76
  6. Step 6: Final answer
    x = 2,980.47

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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.