Home / 3,156.94-4,356.25-1,831.08

Finding the Fourth Proportional to 3,156.94, 4,356.25 and 1,831.08

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Solution

The fourth proportional to 3,156.94, 4,356.25 and 1,831.08 is: 2,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.94 : 4,356.25 = 1,831.08 : x
  2. Step 2: Convert to fraction form
    3,156.94/4,356.25 = 1,831.08/x
  3. Step 3: Cross multiply
    3,156.94x = 4,356.25 × 1,831.08
  4. Step 4: Simplify right side
    3,156.94x = 7,976,642.25
  5. Step 5: Solve for x
    x = 7,976,642.25/3,156.94
  6. Step 6: Final answer
    x = 2,526.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.