Home / 3,122.15-4,684.10-1,042.47

Finding the Fourth Proportional to 3,122.15, 4,684.10 and 1,042.47

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Solution

The fourth proportional to 3,122.15, 4,684.10 and 1,042.47 is: 1,564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.15 : 4,684.10 = 1,042.47 : x
  2. Step 2: Convert to fraction form
    3,122.15/4,684.10 = 1,042.47/x
  3. Step 3: Cross multiply
    3,122.15x = 4,684.10 × 1,042.47
  4. Step 4: Simplify right side
    3,122.15x = 4,883,028.51
  5. Step 5: Solve for x
    x = 4,883,028.51/3,122.15
  6. Step 6: Final answer
    x = 1,564.00

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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.