Home / 3,330.78-4,994.25-1,384.38

Finding the Fourth Proportional to 3,330.78, 4,994.25 and 1,384.38

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Solution

The fourth proportional to 3,330.78, 4,994.25 and 1,384.38 is: 2,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.78 : 4,994.25 = 1,384.38 : x
  2. Step 2: Convert to fraction form
    3,330.78/4,994.25 = 1,384.38/x
  3. Step 3: Cross multiply
    3,330.78x = 4,994.25 × 1,384.38
  4. Step 4: Simplify right side
    3,330.78x = 6,913,939.82
  5. Step 5: Solve for x
    x = 6,913,939.82/3,330.78
  6. Step 6: Final answer
    x = 2,075.77

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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.