Home / 3,119.26-4,677.69-1,038.86

Finding the Fourth Proportional to 3,119.26, 4,677.69 and 1,038.86

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Solution

The fourth proportional to 3,119.26, 4,677.69 and 1,038.86 is: 1,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.26 : 4,677.69 = 1,038.86 : x
  2. Step 2: Convert to fraction form
    3,119.26/4,677.69 = 1,038.86/x
  3. Step 3: Cross multiply
    3,119.26x = 4,677.69 × 1,038.86
  4. Step 4: Simplify right side
    3,119.26x = 4,859,465.03
  5. Step 5: Solve for x
    x = 4,859,465.03/3,119.26
  6. Step 6: Final answer
    x = 1,557.89

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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.