Home / 2,405.90-3,607.44-1,175.31

Finding the Fourth Proportional to 2,405.90, 3,607.44 and 1,175.31

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Solution

The fourth proportional to 2,405.90, 3,607.44 and 1,175.31 is: 1,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.90 : 3,607.44 = 1,175.31 : x
  2. Step 2: Convert to fraction form
    2,405.90/3,607.44 = 1,175.31/x
  3. Step 3: Cross multiply
    2,405.90x = 3,607.44 × 1,175.31
  4. Step 4: Simplify right side
    2,405.90x = 4,239,855.90
  5. Step 5: Solve for x
    x = 4,239,855.90/2,405.90
  6. Step 6: Final answer
    x = 1,762.27

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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.