Home / 2,287.81-3,431.44-1,054.86

Finding the Fourth Proportional to 2,287.81, 3,431.44 and 1,054.86

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Solution

The fourth proportional to 2,287.81, 3,431.44 and 1,054.86 is: 1,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.81 : 3,431.44 = 1,054.86 : x
  2. Step 2: Convert to fraction form
    2,287.81/3,431.44 = 1,054.86/x
  3. Step 3: Cross multiply
    2,287.81x = 3,431.44 × 1,054.86
  4. Step 4: Simplify right side
    2,287.81x = 3,619,688.80
  5. Step 5: Solve for x
    x = 3,619,688.80/2,287.81
  6. Step 6: Final answer
    x = 1,582.16

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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.