Home / 2,549.45-3,831.39-1,509.65

Finding the Fourth Proportional to 2,549.45, 3,831.39 and 1,509.65

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Solution

The fourth proportional to 2,549.45, 3,831.39 and 1,509.65 is: 2,268.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.45 : 3,831.39 = 1,509.65 : x
  2. Step 2: Convert to fraction form
    2,549.45/3,831.39 = 1,509.65/x
  3. Step 3: Cross multiply
    2,549.45x = 3,831.39 × 1,509.65
  4. Step 4: Simplify right side
    2,549.45x = 5,784,038.76
  5. Step 5: Solve for x
    x = 5,784,038.76/2,549.45
  6. Step 6: Final answer
    x = 2,268.74

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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.