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Finding the Fourth Proportional to 5,653.50, 7,802.19 and 3,169.50

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Solution

The fourth proportional to 5,653.50, 7,802.19 and 3,169.50 is: 4,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.50 : 7,802.19 = 3,169.50 : x
  2. Step 2: Convert to fraction form
    5,653.50/7,802.19 = 3,169.50/x
  3. Step 3: Cross multiply
    5,653.50x = 7,802.19 × 3,169.50
  4. Step 4: Simplify right side
    5,653.50x = 24,729,041.21
  5. Step 5: Solve for x
    x = 24,729,041.21/5,653.50
  6. Step 6: Final answer
    x = 4,374.11

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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.