Home / 5,148.10-7,104.30-2,909.95

Finding the Fourth Proportional to 5,148.10, 7,104.30 and 2,909.95

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Solution

The fourth proportional to 5,148.10, 7,104.30 and 2,909.95 is: 4,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.10 : 7,104.30 = 2,909.95 : x
  2. Step 2: Convert to fraction form
    5,148.10/7,104.30 = 2,909.95/x
  3. Step 3: Cross multiply
    5,148.10x = 7,104.30 × 2,909.95
  4. Step 4: Simplify right side
    5,148.10x = 20,673,157.79
  5. Step 5: Solve for x
    x = 20,673,157.79/5,148.10
  6. Step 6: Final answer
    x = 4,015.69

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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.