Home / 3,429.68-5,140.88-1,784.58

Finding the Fourth Proportional to 3,429.68, 5,140.88 and 1,784.58

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Solution

The fourth proportional to 3,429.68, 5,140.88 and 1,784.58 is: 2,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.68 : 5,140.88 = 1,784.58 : x
  2. Step 2: Convert to fraction form
    3,429.68/5,140.88 = 1,784.58/x
  3. Step 3: Cross multiply
    3,429.68x = 5,140.88 × 1,784.58
  4. Step 4: Simplify right side
    3,429.68x = 9,174,311.63
  5. Step 5: Solve for x
    x = 9,174,311.63/3,429.68
  6. Step 6: Final answer
    x = 2,674.98

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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.