Home / 4,947.80-7,416.90-2,022.20

Finding the Fourth Proportional to 4,947.80, 7,416.90 and 2,022.20

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Solution

The fourth proportional to 4,947.80, 7,416.90 and 2,022.20 is: 3,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.80 : 7,416.90 = 2,022.20 : x
  2. Step 2: Convert to fraction form
    4,947.80/7,416.90 = 2,022.20/x
  3. Step 3: Cross multiply
    4,947.80x = 7,416.90 × 2,022.20
  4. Step 4: Simplify right side
    4,947.80x = 14,998,455.18
  5. Step 5: Solve for x
    x = 14,998,455.18/4,947.80
  6. Step 6: Final answer
    x = 3,031.34

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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.