Home / 2,486.48-3,730.08-1,186.88

Finding the Fourth Proportional to 2,486.48, 3,730.08 and 1,186.88

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Solution

The fourth proportional to 2,486.48, 3,730.08 and 1,186.88 is: 1,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.48 : 3,730.08 = 1,186.88 : x
  2. Step 2: Convert to fraction form
    2,486.48/3,730.08 = 1,186.88/x
  3. Step 3: Cross multiply
    2,486.48x = 3,730.08 × 1,186.88
  4. Step 4: Simplify right side
    2,486.48x = 4,427,157.35
  5. Step 5: Solve for x
    x = 4,427,157.35/2,486.48
  6. Step 6: Final answer
    x = 1,780.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.