Home / 3,436.80-5,154.12-1,245.84

Finding the Fourth Proportional to 3,436.80, 5,154.12 and 1,245.84

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Solution

The fourth proportional to 3,436.80, 5,154.12 and 1,245.84 is: 1,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.80 : 5,154.12 = 1,245.84 : x
  2. Step 2: Convert to fraction form
    3,436.80/5,154.12 = 1,245.84/x
  3. Step 3: Cross multiply
    3,436.80x = 5,154.12 × 1,245.84
  4. Step 4: Simplify right side
    3,436.80x = 6,421,208.86
  5. Step 5: Solve for x
    x = 6,421,208.86/3,436.80
  6. Step 6: Final answer
    x = 1,868.37

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1.5x scale

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.