Home / 6,109.29-8,430.84-3,314.79

Finding the Fourth Proportional to 6,109.29, 8,430.84 and 3,314.79

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Solution

The fourth proportional to 6,109.29, 8,430.84 and 3,314.79 is: 4,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.29 : 8,430.84 = 3,314.79 : x
  2. Step 2: Convert to fraction form
    6,109.29/8,430.84 = 3,314.79/x
  3. Step 3: Cross multiply
    6,109.29x = 8,430.84 × 3,314.79
  4. Step 4: Simplify right side
    6,109.29x = 27,946,464.12
  5. Step 5: Solve for x
    x = 27,946,464.12/6,109.29
  6. Step 6: Final answer
    x = 4,574.42

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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.