Home / 7,122.03-10,681.79-1,926.69

Finding the Fourth Proportional to 7,122.03, 10,681.79 and 1,926.69

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Solution

The fourth proportional to 7,122.03, 10,681.79 and 1,926.69 is: 2,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.03 : 10,681.79 = 1,926.69 : x
  2. Step 2: Convert to fraction form
    7,122.03/10,681.79 = 1,926.69/x
  3. Step 3: Cross multiply
    7,122.03x = 10,681.79 × 1,926.69
  4. Step 4: Simplify right side
    7,122.03x = 20,580,497.98
  5. Step 5: Solve for x
    x = 20,580,497.98/7,122.03
  6. Step 6: Final answer
    x = 2,889.70

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1.5x scale

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.