Home / 3,142.02-4,709.16-1,291.98

Finding the Fourth Proportional to 3,142.02, 4,709.16 and 1,291.98

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Solution

The fourth proportional to 3,142.02, 4,709.16 and 1,291.98 is: 1,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.02 : 4,709.16 = 1,291.98 : x
  2. Step 2: Convert to fraction form
    3,142.02/4,709.16 = 1,291.98/x
  3. Step 3: Cross multiply
    3,142.02x = 4,709.16 × 1,291.98
  4. Step 4: Simplify right side
    3,142.02x = 6,084,140.54
  5. Step 5: Solve for x
    x = 6,084,140.54/3,142.02
  6. Step 6: Final answer
    x = 1,936.38

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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.