Home / 2,630.21-3,629.64-1,435.14

Finding the Fourth Proportional to 2,630.21, 3,629.64 and 1,435.14

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Solution

The fourth proportional to 2,630.21, 3,629.64 and 1,435.14 is: 1,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.21 : 3,629.64 = 1,435.14 : x
  2. Step 2: Convert to fraction form
    2,630.21/3,629.64 = 1,435.14/x
  3. Step 3: Cross multiply
    2,630.21x = 3,629.64 × 1,435.14
  4. Step 4: Simplify right side
    2,630.21x = 5,209,034.37
  5. Step 5: Solve for x
    x = 5,209,034.37/2,630.21
  6. Step 6: Final answer
    x = 1,980.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.