Home / 5,389.08-8,085.65-1,879.35

Finding the Fourth Proportional to 5,389.08, 8,085.65 and 1,879.35

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Solution

The fourth proportional to 5,389.08, 8,085.65 and 1,879.35 is: 2,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.08 : 8,085.65 = 1,879.35 : x
  2. Step 2: Convert to fraction form
    5,389.08/8,085.65 = 1,879.35/x
  3. Step 3: Cross multiply
    5,389.08x = 8,085.65 × 1,879.35
  4. Step 4: Simplify right side
    5,389.08x = 15,195,756.93
  5. Step 5: Solve for x
    x = 15,195,756.93/5,389.08
  6. Step 6: Final answer
    x = 2,819.73

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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.