Home / 5,728.22-7,904.67-3,210.02

Finding the Fourth Proportional to 5,728.22, 7,904.67 and 3,210.02

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Solution

The fourth proportional to 5,728.22, 7,904.67 and 3,210.02 is: 4,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.22 : 7,904.67 = 3,210.02 : x
  2. Step 2: Convert to fraction form
    5,728.22/7,904.67 = 3,210.02/x
  3. Step 3: Cross multiply
    5,728.22x = 7,904.67 × 3,210.02
  4. Step 4: Simplify right side
    5,728.22x = 25,374,148.79
  5. Step 5: Solve for x
    x = 25,374,148.79/5,728.22
  6. Step 6: Final answer
    x = 4,429.67

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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.