Home / 5,886.09-8,121.69-3,999.18

Finding the Fourth Proportional to 5,886.09, 8,121.69 and 3,999.18

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Solution

The fourth proportional to 5,886.09, 8,121.69 and 3,999.18 is: 5,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.09 : 8,121.69 = 3,999.18 : x
  2. Step 2: Convert to fraction form
    5,886.09/8,121.69 = 3,999.18/x
  3. Step 3: Cross multiply
    5,886.09x = 8,121.69 × 3,999.18
  4. Step 4: Simplify right side
    5,886.09x = 32,480,100.21
  5. Step 5: Solve for x
    x = 32,480,100.21/5,886.09
  6. Step 6: Final answer
    x = 5,518.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.