Home / 3,888.56-5,831.84-1,423.60

Finding the Fourth Proportional to 3,888.56, 5,831.84 and 1,423.60

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Solution

The fourth proportional to 3,888.56, 5,831.84 and 1,423.60 is: 2,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.56 : 5,831.84 = 1,423.60 : x
  2. Step 2: Convert to fraction form
    3,888.56/5,831.84 = 1,423.60/x
  3. Step 3: Cross multiply
    3,888.56x = 5,831.84 × 1,423.60
  4. Step 4: Simplify right side
    3,888.56x = 8,302,207.42
  5. Step 5: Solve for x
    x = 8,302,207.42/3,888.56
  6. Step 6: Final answer
    x = 2,135.03

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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.