Home / 3,889.36-5,368.12-2,210.88

Finding the Fourth Proportional to 3,889.36, 5,368.12 and 2,210.88

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Solution

The fourth proportional to 3,889.36, 5,368.12 and 2,210.88 is: 3,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.36 : 5,368.12 = 2,210.88 : x
  2. Step 2: Convert to fraction form
    3,889.36/5,368.12 = 2,210.88/x
  3. Step 3: Cross multiply
    3,889.36x = 5,368.12 × 2,210.88
  4. Step 4: Simplify right side
    3,889.36x = 11,868,269.15
  5. Step 5: Solve for x
    x = 11,868,269.15/3,889.36
  6. Step 6: Final answer
    x = 3,051.47

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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.