Home / 3,918.40-5,876.43-1,577.65

Finding the Fourth Proportional to 3,918.40, 5,876.43 and 1,577.65

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Solution

The fourth proportional to 3,918.40, 5,876.43 and 1,577.65 is: 2,366.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.40 : 5,876.43 = 1,577.65 : x
  2. Step 2: Convert to fraction form
    3,918.40/5,876.43 = 1,577.65/x
  3. Step 3: Cross multiply
    3,918.40x = 5,876.43 × 1,577.65
  4. Step 4: Simplify right side
    3,918.40x = 9,270,949.79
  5. Step 5: Solve for x
    x = 9,270,949.79/3,918.40
  6. Step 6: Final answer
    x = 2,366.00

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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.