Home / 3,118.76-4,676.94-1,038.36

Finding the Fourth Proportional to 3,118.76, 4,676.94 and 1,038.36

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Solution

The fourth proportional to 3,118.76, 4,676.94 and 1,038.36 is: 1,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.76 : 4,676.94 = 1,038.36 : x
  2. Step 2: Convert to fraction form
    3,118.76/4,676.94 = 1,038.36/x
  3. Step 3: Cross multiply
    3,118.76x = 4,676.94 × 1,038.36
  4. Step 4: Simplify right side
    3,118.76x = 4,856,347.42
  5. Step 5: Solve for x
    x = 4,856,347.42/3,118.76
  6. Step 6: Final answer
    x = 1,557.14

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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.