Home / 3,119.16-4,675.21-1,038.68

Finding the Fourth Proportional to 3,119.16, 4,675.21 and 1,038.68

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Solution

The fourth proportional to 3,119.16, 4,675.21 and 1,038.68 is: 1,556.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.16 : 4,675.21 = 1,038.68 : x
  2. Step 2: Convert to fraction form
    3,119.16/4,675.21 = 1,038.68/x
  3. Step 3: Cross multiply
    3,119.16x = 4,675.21 × 1,038.68
  4. Step 4: Simplify right side
    3,119.16x = 4,856,047.12
  5. Step 5: Solve for x
    x = 4,856,047.12/3,119.16
  6. Step 6: Final answer
    x = 1,556.84

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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.