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Finding the Fourth Proportional to 4,958.75, 7,438.13 and 1,880.75

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Solution

The fourth proportional to 4,958.75, 7,438.13 and 1,880.75 is: 2,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,958.75 : 7,438.13 = 1,880.75 : x
  2. Step 2: Convert to fraction form
    4,958.75/7,438.13 = 1,880.75/x
  3. Step 3: Cross multiply
    4,958.75x = 7,438.13 × 1,880.75
  4. Step 4: Simplify right side
    4,958.75x = 13,989,263.00
  5. Step 5: Solve for x
    x = 13,989,263.00/4,958.75
  6. Step 6: Final answer
    x = 2,821.13

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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.