Home / 3,716.24-5,128.18-2,123.07

Finding the Fourth Proportional to 3,716.24, 5,128.18 and 2,123.07

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Solution

The fourth proportional to 3,716.24, 5,128.18 and 2,123.07 is: 2,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.24 : 5,128.18 = 2,123.07 : x
  2. Step 2: Convert to fraction form
    3,716.24/5,128.18 = 2,123.07/x
  3. Step 3: Cross multiply
    3,716.24x = 5,128.18 × 2,123.07
  4. Step 4: Simplify right side
    3,716.24x = 10,887,485.11
  5. Step 5: Solve for x
    x = 10,887,485.11/3,716.24
  6. Step 6: Final answer
    x = 2,929.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.