Home / 2,926.18-4,390.08-2,603.80

Finding the Fourth Proportional to 2,926.18, 4,390.08 and 2,603.80

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Solution

The fourth proportional to 2,926.18, 4,390.08 and 2,603.80 is: 3,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.18 : 4,390.08 = 2,603.80 : x
  2. Step 2: Convert to fraction form
    2,926.18/4,390.08 = 2,603.80/x
  3. Step 3: Cross multiply
    2,926.18x = 4,390.08 × 2,603.80
  4. Step 4: Simplify right side
    2,926.18x = 11,430,890.30
  5. Step 5: Solve for x
    x = 11,430,890.30/2,926.18
  6. Step 6: Final answer
    x = 3,906.42

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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.