Home / 3,438.10-5,157.12-1,246

Finding the Fourth Proportional to 3,438.10, 5,157.12 and 1,246

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Solution

The fourth proportional to 3,438.10, 5,157.12 and 1,246 is: 1,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.10 : 5,157.12 = 1,246 : x
  2. Step 2: Convert to fraction form
    3,438.10/5,157.12 = 1,246/x
  3. Step 3: Cross multiply
    3,438.10x = 5,157.12 × 1,246
  4. Step 4: Simplify right side
    3,438.10x = 6,425,771.52
  5. Step 5: Solve for x
    x = 6,425,771.52/3,438.10
  6. Step 6: Final answer
    x = 1,868.99

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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.