Home / 7,122.07-10,686.93-2,964.95

Finding the Fourth Proportional to 7,122.07, 10,686.93 and 2,964.95

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Solution

The fourth proportional to 7,122.07, 10,686.93 and 2,964.95 is: 4,449.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.07 : 10,686.93 = 2,964.95 : x
  2. Step 2: Convert to fraction form
    7,122.07/10,686.93 = 2,964.95/x
  3. Step 3: Cross multiply
    7,122.07x = 10,686.93 × 2,964.95
  4. Step 4: Simplify right side
    7,122.07x = 31,686,224.22
  5. Step 5: Solve for x
    x = 31,686,224.22/7,122.07
  6. Step 6: Final answer
    x = 4,449.02

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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.