Home / 5,142.44-7,713.68-1,246.86

Finding the Fourth Proportional to 5,142.44, 7,713.68 and 1,246.86

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Solution

The fourth proportional to 5,142.44, 7,713.68 and 1,246.86 is: 1,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.44 : 7,713.68 = 1,246.86 : x
  2. Step 2: Convert to fraction form
    5,142.44/7,713.68 = 1,246.86/x
  3. Step 3: Cross multiply
    5,142.44x = 7,713.68 × 1,246.86
  4. Step 4: Simplify right side
    5,142.44x = 9,617,879.04
  5. Step 5: Solve for x
    x = 9,617,879.04/5,142.44
  6. Step 6: Final answer
    x = 1,870.29

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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.