Home / 2,509.37-3,462.93-1,390.29

Finding the Fourth Proportional to 2,509.37, 3,462.93 and 1,390.29

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Solution

The fourth proportional to 2,509.37, 3,462.93 and 1,390.29 is: 1,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.37 : 3,462.93 = 1,390.29 : x
  2. Step 2: Convert to fraction form
    2,509.37/3,462.93 = 1,390.29/x
  3. Step 3: Cross multiply
    2,509.37x = 3,462.93 × 1,390.29
  4. Step 4: Simplify right side
    2,509.37x = 4,814,489.94
  5. Step 5: Solve for x
    x = 4,814,489.94/2,509.37
  6. Step 6: Final answer
    x = 1,918.61

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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.