Home / 2,831.29-3,907.28-1,712.01

Finding the Fourth Proportional to 2,831.29, 3,907.28 and 1,712.01

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Solution

The fourth proportional to 2,831.29, 3,907.28 and 1,712.01 is: 2,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.29 : 3,907.28 = 1,712.01 : x
  2. Step 2: Convert to fraction form
    2,831.29/3,907.28 = 1,712.01/x
  3. Step 3: Cross multiply
    2,831.29x = 3,907.28 × 1,712.01
  4. Step 4: Simplify right side
    2,831.29x = 6,689,302.43
  5. Step 5: Solve for x
    x = 6,689,302.43/2,831.29
  6. Step 6: Final answer
    x = 2,362.63

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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.