Home / 7,123.48-10,682.22-2,905.56

Finding the Fourth Proportional to 7,123.48, 10,682.22 and 2,905.56

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Solution

The fourth proportional to 7,123.48, 10,682.22 and 2,905.56 is: 4,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.48 : 10,682.22 = 2,905.56 : x
  2. Step 2: Convert to fraction form
    7,123.48/10,682.22 = 2,905.56/x
  3. Step 3: Cross multiply
    7,123.48x = 10,682.22 × 2,905.56
  4. Step 4: Simplify right side
    7,123.48x = 31,037,831.14
  5. Step 5: Solve for x
    x = 31,037,831.14/7,123.48
  6. Step 6: Final answer
    x = 4,357.12

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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.