Home / 3,219.33-4,830.71-1,271.55

Finding the Fourth Proportional to 3,219.33, 4,830.71 and 1,271.55

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Solution

The fourth proportional to 3,219.33, 4,830.71 and 1,271.55 is: 1,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.33 : 4,830.71 = 1,271.55 : x
  2. Step 2: Convert to fraction form
    3,219.33/4,830.71 = 1,271.55/x
  3. Step 3: Cross multiply
    3,219.33x = 4,830.71 × 1,271.55
  4. Step 4: Simplify right side
    3,219.33x = 6,142,482.94
  5. Step 5: Solve for x
    x = 6,142,482.94/3,219.33
  6. Step 6: Final answer
    x = 1,908.00

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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.