Home / 3,261.20-4,891.80-1,506.20

Finding the Fourth Proportional to 3,261.20, 4,891.80 and 1,506.20

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Solution

The fourth proportional to 3,261.20, 4,891.80 and 1,506.20 is: 2,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.20 : 4,891.80 = 1,506.20 : x
  2. Step 2: Convert to fraction form
    3,261.20/4,891.80 = 1,506.20/x
  3. Step 3: Cross multiply
    3,261.20x = 4,891.80 × 1,506.20
  4. Step 4: Simplify right side
    3,261.20x = 7,368,029.16
  5. Step 5: Solve for x
    x = 7,368,029.16/3,261.20
  6. Step 6: Final answer
    x = 2,259.30

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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.