Home / 3,330.58-4,998.10-1,382.78

Finding the Fourth Proportional to 3,330.58, 4,998.10 and 1,382.78

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Solution

The fourth proportional to 3,330.58, 4,998.10 and 1,382.78 is: 2,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.58 : 4,998.10 = 1,382.78 : x
  2. Step 2: Convert to fraction form
    3,330.58/4,998.10 = 1,382.78/x
  3. Step 3: Cross multiply
    3,330.58x = 4,998.10 × 1,382.78
  4. Step 4: Simplify right side
    3,330.58x = 6,911,272.72
  5. Step 5: Solve for x
    x = 6,911,272.72/3,330.58
  6. Step 6: Final answer
    x = 2,075.10

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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.