Home / 3,018.61-4,165.58-1,674.21

Finding the Fourth Proportional to 3,018.61, 4,165.58 and 1,674.21

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Solution

The fourth proportional to 3,018.61, 4,165.58 and 1,674.21 is: 2,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.61 : 4,165.58 = 1,674.21 : x
  2. Step 2: Convert to fraction form
    3,018.61/4,165.58 = 1,674.21/x
  3. Step 3: Cross multiply
    3,018.61x = 4,165.58 × 1,674.21
  4. Step 4: Simplify right side
    3,018.61x = 6,974,075.50
  5. Step 5: Solve for x
    x = 6,974,075.50/3,018.61
  6. Step 6: Final answer
    x = 2,310.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.