Home / 4,378.20-6,554.40-2,894.70

Finding the Fourth Proportional to 4,378.20, 6,554.40 and 2,894.70

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Solution

The fourth proportional to 4,378.20, 6,554.40 and 2,894.70 is: 4,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.20 : 6,554.40 = 2,894.70 : x
  2. Step 2: Convert to fraction form
    4,378.20/6,554.40 = 2,894.70/x
  3. Step 3: Cross multiply
    4,378.20x = 6,554.40 × 2,894.70
  4. Step 4: Simplify right side
    4,378.20x = 18,973,021.68
  5. Step 5: Solve for x
    x = 18,973,021.68/4,378.20
  6. Step 6: Final answer
    x = 4,333.52

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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.