Home / 2,485.28-3,429.44-1,437.68

Finding the Fourth Proportional to 2,485.28, 3,429.44 and 1,437.68

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Solution

The fourth proportional to 2,485.28, 3,429.44 and 1,437.68 is: 1,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.28 : 3,429.44 = 1,437.68 : x
  2. Step 2: Convert to fraction form
    2,485.28/3,429.44 = 1,437.68/x
  3. Step 3: Cross multiply
    2,485.28x = 3,429.44 × 1,437.68
  4. Step 4: Simplify right side
    2,485.28x = 4,930,437.30
  5. Step 5: Solve for x
    x = 4,930,437.30/2,485.28
  6. Step 6: Final answer
    x = 1,983.86

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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.