Home / 3,870.35-5,341.19-2,168.99

Finding the Fourth Proportional to 3,870.35, 5,341.19 and 2,168.99

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Solution

The fourth proportional to 3,870.35, 5,341.19 and 2,168.99 is: 2,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.35 : 5,341.19 = 2,168.99 : x
  2. Step 2: Convert to fraction form
    3,870.35/5,341.19 = 2,168.99/x
  3. Step 3: Cross multiply
    3,870.35x = 5,341.19 × 2,168.99
  4. Step 4: Simplify right side
    3,870.35x = 11,584,950.15
  5. Step 5: Solve for x
    x = 11,584,950.15/3,870.35
  6. Step 6: Final answer
    x = 2,993.26

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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.