Home / 6,319.26-8,720.18-3,486.65

Finding the Fourth Proportional to 6,319.26, 8,720.18 and 3,486.65

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Solution

The fourth proportional to 6,319.26, 8,720.18 and 3,486.65 is: 4,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.26 : 8,720.18 = 3,486.65 : x
  2. Step 2: Convert to fraction form
    6,319.26/8,720.18 = 3,486.65/x
  3. Step 3: Cross multiply
    6,319.26x = 8,720.18 × 3,486.65
  4. Step 4: Simplify right side
    6,319.26x = 30,404,154.56
  5. Step 5: Solve for x
    x = 30,404,154.56/6,319.26
  6. Step 6: Final answer
    x = 4,811.35

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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.