Home / 3,347.81-5,021.69-2,618

Finding the Fourth Proportional to 3,347.81, 5,021.69 and 2,618

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Solution

The fourth proportional to 3,347.81, 5,021.69 and 2,618 is: 3,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.81 : 5,021.69 = 2,618 : x
  2. Step 2: Convert to fraction form
    3,347.81/5,021.69 = 2,618/x
  3. Step 3: Cross multiply
    3,347.81x = 5,021.69 × 2,618
  4. Step 4: Simplify right side
    3,347.81x = 13,146,784.42
  5. Step 5: Solve for x
    x = 13,146,784.42/3,347.81
  6. Step 6: Final answer
    x = 3,926.98

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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.