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Finding the Fourth Proportional to 3,728.85, 5,594.80 and 1,880.50

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Solution

The fourth proportional to 3,728.85, 5,594.80 and 1,880.50 is: 2,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.85 : 5,594.80 = 1,880.50 : x
  2. Step 2: Convert to fraction form
    3,728.85/5,594.80 = 1,880.50/x
  3. Step 3: Cross multiply
    3,728.85x = 5,594.80 × 1,880.50
  4. Step 4: Simplify right side
    3,728.85x = 10,521,021.40
  5. Step 5: Solve for x
    x = 10,521,021.40/3,728.85
  6. Step 6: Final answer
    x = 2,821.52

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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.