Home / 7,122.59-10,682.09-2,123.81

Finding the Fourth Proportional to 7,122.59, 10,682.09 and 2,123.81

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Solution

The fourth proportional to 7,122.59, 10,682.09 and 2,123.81 is: 3,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.59 : 10,682.09 = 2,123.81 : x
  2. Step 2: Convert to fraction form
    7,122.59/10,682.09 = 2,123.81/x
  3. Step 3: Cross multiply
    7,122.59x = 10,682.09 × 2,123.81
  4. Step 4: Simplify right side
    7,122.59x = 22,686,718.94
  5. Step 5: Solve for x
    x = 22,686,718.94/7,122.59
  6. Step 6: Final answer
    x = 3,185.18

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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.