Home / 7,002.12-9,659.88-4,206

Finding the Fourth Proportional to 7,002.12, 9,659.88 and 4,206

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Solution

The fourth proportional to 7,002.12, 9,659.88 and 4,206 is: 5,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.12 : 9,659.88 = 4,206 : x
  2. Step 2: Convert to fraction form
    7,002.12/9,659.88 = 4,206/x
  3. Step 3: Cross multiply
    7,002.12x = 9,659.88 × 4,206
  4. Step 4: Simplify right side
    7,002.12x = 40,629,455.28
  5. Step 5: Solve for x
    x = 40,629,455.28/7,002.12
  6. Step 6: Final answer
    x = 5,802.45

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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.