Home / 2,478.07-3,717.78-1,383.22

Finding the Fourth Proportional to 2,478.07, 3,717.78 and 1,383.22

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Solution

The fourth proportional to 2,478.07, 3,717.78 and 1,383.22 is: 2,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.07 : 3,717.78 = 1,383.22 : x
  2. Step 2: Convert to fraction form
    2,478.07/3,717.78 = 1,383.22/x
  3. Step 3: Cross multiply
    2,478.07x = 3,717.78 × 1,383.22
  4. Step 4: Simplify right side
    2,478.07x = 5,142,507.65
  5. Step 5: Solve for x
    x = 5,142,507.65/2,478.07
  6. Step 6: Final answer
    x = 2,075.21

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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.