Home / 3,001.28-4,504.20-1,271.12

Finding the Fourth Proportional to 3,001.28, 4,504.20 and 1,271.12

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Solution

The fourth proportional to 3,001.28, 4,504.20 and 1,271.12 is: 1,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.28 : 4,504.20 = 1,271.12 : x
  2. Step 2: Convert to fraction form
    3,001.28/4,504.20 = 1,271.12/x
  3. Step 3: Cross multiply
    3,001.28x = 4,504.20 × 1,271.12
  4. Step 4: Simplify right side
    3,001.28x = 5,725,378.70
  5. Step 5: Solve for x
    x = 5,725,378.70/3,001.28
  6. Step 6: Final answer
    x = 1,907.65

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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.