Home / 3,889.36-5,365.32-2,711.44

Finding the Fourth Proportional to 3,889.36, 5,365.32 and 2,711.44

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Solution

The fourth proportional to 3,889.36, 5,365.32 and 2,711.44 is: 3,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.36 : 5,365.32 = 2,711.44 : x
  2. Step 2: Convert to fraction form
    3,889.36/5,365.32 = 2,711.44/x
  3. Step 3: Cross multiply
    3,889.36x = 5,365.32 × 2,711.44
  4. Step 4: Simplify right side
    3,889.36x = 14,547,743.26
  5. Step 5: Solve for x
    x = 14,547,743.26/3,889.36
  6. Step 6: Final answer
    x = 3,740.40

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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.