Home / 3,756.31-5,632.63-1,290.47

Finding the Fourth Proportional to 3,756.31, 5,632.63 and 1,290.47

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Solution

The fourth proportional to 3,756.31, 5,632.63 and 1,290.47 is: 1,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.31 : 5,632.63 = 1,290.47 : x
  2. Step 2: Convert to fraction form
    3,756.31/5,632.63 = 1,290.47/x
  3. Step 3: Cross multiply
    3,756.31x = 5,632.63 × 1,290.47
  4. Step 4: Simplify right side
    3,756.31x = 7,268,708.65
  5. Step 5: Solve for x
    x = 7,268,708.65/3,756.31
  6. Step 6: Final answer
    x = 1,935.07

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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.