Home / 5,429.04-8,139.24-2,505.84

Finding the Fourth Proportional to 5,429.04, 8,139.24 and 2,505.84

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Solution

The fourth proportional to 5,429.04, 8,139.24 and 2,505.84 is: 3,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.04 : 8,139.24 = 2,505.84 : x
  2. Step 2: Convert to fraction form
    5,429.04/8,139.24 = 2,505.84/x
  3. Step 3: Cross multiply
    5,429.04x = 8,139.24 × 2,505.84
  4. Step 4: Simplify right side
    5,429.04x = 20,395,633.16
  5. Step 5: Solve for x
    x = 20,395,633.16/5,429.04
  6. Step 6: Final answer
    x = 3,756.77

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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.