Home / 3,000.70-4,140.81-1,674.14

Finding the Fourth Proportional to 3,000.70, 4,140.81 and 1,674.14

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Solution

The fourth proportional to 3,000.70, 4,140.81 and 1,674.14 is: 2,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.70 : 4,140.81 = 1,674.14 : x
  2. Step 2: Convert to fraction form
    3,000.70/4,140.81 = 1,674.14/x
  3. Step 3: Cross multiply
    3,000.70x = 4,140.81 × 1,674.14
  4. Step 4: Simplify right side
    3,000.70x = 6,932,295.65
  5. Step 5: Solve for x
    x = 6,932,295.65/3,000.70
  6. Step 6: Final answer
    x = 2,310.23

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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.