Home / 4,880.55-7,320.15-1,958.88

Finding the Fourth Proportional to 4,880.55, 7,320.15 and 1,958.88

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Solution

The fourth proportional to 4,880.55, 7,320.15 and 1,958.88 is: 2,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.55 : 7,320.15 = 1,958.88 : x
  2. Step 2: Convert to fraction form
    4,880.55/7,320.15 = 1,958.88/x
  3. Step 3: Cross multiply
    4,880.55x = 7,320.15 × 1,958.88
  4. Step 4: Simplify right side
    4,880.55x = 14,339,295.43
  5. Step 5: Solve for x
    x = 14,339,295.43/4,880.55
  6. Step 6: Final answer
    x = 2,938.05

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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.