Home / 2,453.75-3,386.08-1,405.61

Finding the Fourth Proportional to 2,453.75, 3,386.08 and 1,405.61

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Solution

The fourth proportional to 2,453.75, 3,386.08 and 1,405.61 is: 1,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.75 : 3,386.08 = 1,405.61 : x
  2. Step 2: Convert to fraction form
    2,453.75/3,386.08 = 1,405.61/x
  3. Step 3: Cross multiply
    2,453.75x = 3,386.08 × 1,405.61
  4. Step 4: Simplify right side
    2,453.75x = 4,759,507.91
  5. Step 5: Solve for x
    x = 4,759,507.91/2,453.75
  6. Step 6: Final answer
    x = 1,939.69

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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.