Home / 4,880.20-7,320.30-1,958.17

Finding the Fourth Proportional to 4,880.20, 7,320.30 and 1,958.17

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Solution

The fourth proportional to 4,880.20, 7,320.30 and 1,958.17 is: 2,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.20 : 7,320.30 = 1,958.17 : x
  2. Step 2: Convert to fraction form
    4,880.20/7,320.30 = 1,958.17/x
  3. Step 3: Cross multiply
    4,880.20x = 7,320.30 × 1,958.17
  4. Step 4: Simplify right side
    4,880.20x = 14,334,391.85
  5. Step 5: Solve for x
    x = 14,334,391.85/4,880.20
  6. Step 6: Final answer
    x = 2,937.26

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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.