Home / 7,124.43-10,686.69-2,965.08

Finding the Fourth Proportional to 7,124.43, 10,686.69 and 2,965.08

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Solution

The fourth proportional to 7,124.43, 10,686.69 and 2,965.08 is: 4,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.43 : 10,686.69 = 2,965.08 : x
  2. Step 2: Convert to fraction form
    7,124.43/10,686.69 = 2,965.08/x
  3. Step 3: Cross multiply
    7,124.43x = 10,686.69 × 2,965.08
  4. Step 4: Simplify right side
    7,124.43x = 31,686,890.79
  5. Step 5: Solve for x
    x = 31,686,890.79/7,124.43
  6. Step 6: Final answer
    x = 4,447.64

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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.