Home / 3,119.23-4,677.81-1,038.66

Finding the Fourth Proportional to 3,119.23, 4,677.81 and 1,038.66

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Solution

The fourth proportional to 3,119.23, 4,677.81 and 1,038.66 is: 1,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.23 : 4,677.81 = 1,038.66 : x
  2. Step 2: Convert to fraction form
    3,119.23/4,677.81 = 1,038.66/x
  3. Step 3: Cross multiply
    3,119.23x = 4,677.81 × 1,038.66
  4. Step 4: Simplify right side
    3,119.23x = 4,858,654.13
  5. Step 5: Solve for x
    x = 4,858,654.13/3,119.23
  6. Step 6: Final answer
    x = 1,557.65

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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.