Home / 3,889.22-5,368.16-2,210.69

Finding the Fourth Proportional to 3,889.22, 5,368.16 and 2,210.69

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Solution

The fourth proportional to 3,889.22, 5,368.16 and 2,210.69 is: 3,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.22 : 5,368.16 = 2,210.69 : x
  2. Step 2: Convert to fraction form
    3,889.22/5,368.16 = 2,210.69/x
  3. Step 3: Cross multiply
    3,889.22x = 5,368.16 × 2,210.69
  4. Step 4: Simplify right side
    3,889.22x = 11,867,356.58
  5. Step 5: Solve for x
    x = 11,867,356.58/3,889.22
  6. Step 6: Final answer
    x = 3,051.35

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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.