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Finding the Fourth Proportional to 6,430.44, 9,645.66 and 1,813.44

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Solution

The fourth proportional to 6,430.44, 9,645.66 and 1,813.44 is: 2,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.44 : 9,645.66 = 1,813.44 : x
  2. Step 2: Convert to fraction form
    6,430.44/9,645.66 = 1,813.44/x
  3. Step 3: Cross multiply
    6,430.44x = 9,645.66 × 1,813.44
  4. Step 4: Simplify right side
    6,430.44x = 17,491,825.67
  5. Step 5: Solve for x
    x = 17,491,825.67/6,430.44
  6. Step 6: Final answer
    x = 2,720.16

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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.