Home / 7,122.63-10,685.93-2,964.60

Finding the Fourth Proportional to 7,122.63, 10,685.93 and 2,964.60

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Solution

The fourth proportional to 7,122.63, 10,685.93 and 2,964.60 is: 4,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.63 : 10,685.93 = 2,964.60 : x
  2. Step 2: Convert to fraction form
    7,122.63/10,685.93 = 2,964.60/x
  3. Step 3: Cross multiply
    7,122.63x = 10,685.93 × 2,964.60
  4. Step 4: Simplify right side
    7,122.63x = 31,679,493.26
  5. Step 5: Solve for x
    x = 31,679,493.26/7,122.63
  6. Step 6: Final answer
    x = 4,447.72

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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.