Home / 3,831.60-5,747.40-1,058.28

Finding the Fourth Proportional to 3,831.60, 5,747.40 and 1,058.28

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Solution

The fourth proportional to 3,831.60, 5,747.40 and 1,058.28 is: 1,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.60 : 5,747.40 = 1,058.28 : x
  2. Step 2: Convert to fraction form
    3,831.60/5,747.40 = 1,058.28/x
  3. Step 3: Cross multiply
    3,831.60x = 5,747.40 × 1,058.28
  4. Step 4: Simplify right side
    3,831.60x = 6,082,358.47
  5. Step 5: Solve for x
    x = 6,082,358.47/3,831.60
  6. Step 6: Final answer
    x = 1,587.42

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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.