Home / 5,429.10-8,137.35-2,507.70

Finding the Fourth Proportional to 5,429.10, 8,137.35 and 2,507.70

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Solution

The fourth proportional to 5,429.10, 8,137.35 and 2,507.70 is: 3,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.10 : 8,137.35 = 2,507.70 : x
  2. Step 2: Convert to fraction form
    5,429.10/8,137.35 = 2,507.70/x
  3. Step 3: Cross multiply
    5,429.10x = 8,137.35 × 2,507.70
  4. Step 4: Simplify right side
    5,429.10x = 20,406,032.60
  5. Step 5: Solve for x
    x = 20,406,032.60/5,429.10
  6. Step 6: Final answer
    x = 3,758.64

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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.