Home / 4,712.70-7,074.45-2,520.30

Finding the Fourth Proportional to 4,712.70, 7,074.45 and 2,520.30

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Solution

The fourth proportional to 4,712.70, 7,074.45 and 2,520.30 is: 3,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,712.70 : 7,074.45 = 2,520.30 : x
  2. Step 2: Convert to fraction form
    4,712.70/7,074.45 = 2,520.30/x
  3. Step 3: Cross multiply
    4,712.70x = 7,074.45 × 2,520.30
  4. Step 4: Simplify right side
    4,712.70x = 17,829,736.34
  5. Step 5: Solve for x
    x = 17,829,736.34/4,712.70
  6. Step 6: Final answer
    x = 3,783.34

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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.