Home / 5,389.10-8,081.03-1,879.02

Finding the Fourth Proportional to 5,389.10, 8,081.03 and 1,879.02

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Solution

The fourth proportional to 5,389.10, 8,081.03 and 1,879.02 is: 2,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.10 : 8,081.03 = 1,879.02 : x
  2. Step 2: Convert to fraction form
    5,389.10/8,081.03 = 1,879.02/x
  3. Step 3: Cross multiply
    5,389.10x = 8,081.03 × 1,879.02
  4. Step 4: Simplify right side
    5,389.10x = 15,184,376.59
  5. Step 5: Solve for x
    x = 15,184,376.59/5,389.10
  6. Step 6: Final answer
    x = 2,817.61

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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.