Home / 6,419.04-8,849.41-6,279.31

Finding the Fourth Proportional to 6,419.04, 8,849.41 and 6,279.31

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Solution

The fourth proportional to 6,419.04, 8,849.41 and 6,279.31 is: 8,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.04 : 8,849.41 = 6,279.31 : x
  2. Step 2: Convert to fraction form
    6,419.04/8,849.41 = 6,279.31/x
  3. Step 3: Cross multiply
    6,419.04x = 8,849.41 × 6,279.31
  4. Step 4: Simplify right side
    6,419.04x = 55,568,188.71
  5. Step 5: Solve for x
    x = 55,568,188.71/6,419.04
  6. Step 6: Final answer
    x = 8,656.78

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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.