Home / 3,975.48-5,486.09-2,207.05

Finding the Fourth Proportional to 3,975.48, 5,486.09 and 2,207.05

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Solution

The fourth proportional to 3,975.48, 5,486.09 and 2,207.05 is: 3,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.48 : 5,486.09 = 2,207.05 : x
  2. Step 2: Convert to fraction form
    3,975.48/5,486.09 = 2,207.05/x
  3. Step 3: Cross multiply
    3,975.48x = 5,486.09 × 2,207.05
  4. Step 4: Simplify right side
    3,975.48x = 12,108,050.18
  5. Step 5: Solve for x
    x = 12,108,050.18/3,975.48
  6. Step 6: Final answer
    x = 3,045.68

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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.