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Finding the Fourth Proportional to 3,323.89, 4,986.45 and 1,376.23

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Solution

The fourth proportional to 3,323.89, 4,986.45 and 1,376.23 is: 2,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.89 : 4,986.45 = 1,376.23 : x
  2. Step 2: Convert to fraction form
    3,323.89/4,986.45 = 1,376.23/x
  3. Step 3: Cross multiply
    3,323.89x = 4,986.45 × 1,376.23
  4. Step 4: Simplify right side
    3,323.89x = 6,862,502.08
  5. Step 5: Solve for x
    x = 6,862,502.08/3,323.89
  6. Step 6: Final answer
    x = 2,064.60

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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.