Home / 3,003.90-4,145.39-1,677.65

Finding the Fourth Proportional to 3,003.90, 4,145.39 and 1,677.65

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Solution

The fourth proportional to 3,003.90, 4,145.39 and 1,677.65 is: 2,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.90 : 4,145.39 = 1,677.65 : x
  2. Step 2: Convert to fraction form
    3,003.90/4,145.39 = 1,677.65/x
  3. Step 3: Cross multiply
    3,003.90x = 4,145.39 × 1,677.65
  4. Step 4: Simplify right side
    3,003.90x = 6,954,499.96
  5. Step 5: Solve for x
    x = 6,954,499.96/3,003.90
  6. Step 6: Final answer
    x = 2,315.16

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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.