Home / 6,574.15-9,071.76-3,921

Finding the Fourth Proportional to 6,574.15, 9,071.76 and 3,921

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Solution

The fourth proportional to 6,574.15, 9,071.76 and 3,921 is: 5,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,574.15 : 9,071.76 = 3,921 : x
  2. Step 2: Convert to fraction form
    6,574.15/9,071.76 = 3,921/x
  3. Step 3: Cross multiply
    6,574.15x = 9,071.76 × 3,921
  4. Step 4: Simplify right side
    6,574.15x = 35,570,370.96
  5. Step 5: Solve for x
    x = 35,570,370.96/6,574.15
  6. Step 6: Final answer
    x = 5,410.64

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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.