Home / 2,186.08-3,254.74-2,155.44

Finding the Fourth Proportional to 2,186.08, 3,254.74 and 2,155.44

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Solution

The fourth proportional to 2,186.08, 3,254.74 and 2,155.44 is: 3,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.08 : 3,254.74 = 2,155.44 : x
  2. Step 2: Convert to fraction form
    2,186.08/3,254.74 = 2,155.44/x
  3. Step 3: Cross multiply
    2,186.08x = 3,254.74 × 2,155.44
  4. Step 4: Simplify right side
    2,186.08x = 7,015,396.79
  5. Step 5: Solve for x
    x = 7,015,396.79/2,186.08
  6. Step 6: Final answer
    x = 3,209.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.