Home / 4,924.80-7,378.85-2,972.91

Finding the Fourth Proportional to 4,924.80, 7,378.85 and 2,972.91

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Solution

The fourth proportional to 4,924.80, 7,378.85 and 2,972.91 is: 4,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,924.80 : 7,378.85 = 2,972.91 : x
  2. Step 2: Convert to fraction form
    4,924.80/7,378.85 = 2,972.91/x
  3. Step 3: Cross multiply
    4,924.80x = 7,378.85 × 2,972.91
  4. Step 4: Simplify right side
    4,924.80x = 21,936,642.09
  5. Step 5: Solve for x
    x = 21,936,642.09/4,924.80
  6. Step 6: Final answer
    x = 4,454.32

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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.