Home / 6,430.85-9,643.87-2,212.91

Finding the Fourth Proportional to 6,430.85, 9,643.87 and 2,212.91

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Solution

The fourth proportional to 6,430.85, 9,643.87 and 2,212.91 is: 3,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.85 : 9,643.87 = 2,212.91 : x
  2. Step 2: Convert to fraction form
    6,430.85/9,643.87 = 2,212.91/x
  3. Step 3: Cross multiply
    6,430.85x = 9,643.87 × 2,212.91
  4. Step 4: Simplify right side
    6,430.85x = 21,341,034.94
  5. Step 5: Solve for x
    x = 21,341,034.94/6,430.85
  6. Step 6: Final answer
    x = 3,318.54

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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.