Home / 3,317.78-4,977.34-1,127.14

Finding the Fourth Proportional to 3,317.78, 4,977.34 and 1,127.14

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Solution

The fourth proportional to 3,317.78, 4,977.34 and 1,127.14 is: 1,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.78 : 4,977.34 = 1,127.14 : x
  2. Step 2: Convert to fraction form
    3,317.78/4,977.34 = 1,127.14/x
  3. Step 3: Cross multiply
    3,317.78x = 4,977.34 × 1,127.14
  4. Step 4: Simplify right side
    3,317.78x = 5,610,159.01
  5. Step 5: Solve for x
    x = 5,610,159.01/3,317.78
  6. Step 6: Final answer
    x = 1,690.94

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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.