Home / 7,123.61-10,682.97-2,742.59

Finding the Fourth Proportional to 7,123.61, 10,682.97 and 2,742.59

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Solution

The fourth proportional to 7,123.61, 10,682.97 and 2,742.59 is: 4,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.61 : 10,682.97 = 2,742.59 : x
  2. Step 2: Convert to fraction form
    7,123.61/10,682.97 = 2,742.59/x
  3. Step 3: Cross multiply
    7,123.61x = 10,682.97 × 2,742.59
  4. Step 4: Simplify right side
    7,123.61x = 29,298,953.28
  5. Step 5: Solve for x
    x = 29,298,953.28/7,123.61
  6. Step 6: Final answer
    x = 4,112.94

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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.