Home / 5,074.60-7,004.30-2,980.12

Finding the Fourth Proportional to 5,074.60, 7,004.30 and 2,980.12

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Solution

The fourth proportional to 5,074.60, 7,004.30 and 2,980.12 is: 4,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.60 : 7,004.30 = 2,980.12 : x
  2. Step 2: Convert to fraction form
    5,074.60/7,004.30 = 2,980.12/x
  3. Step 3: Cross multiply
    5,074.60x = 7,004.30 × 2,980.12
  4. Step 4: Simplify right side
    5,074.60x = 20,873,604.59
  5. Step 5: Solve for x
    x = 20,873,604.59/5,074.60
  6. Step 6: Final answer
    x = 4,113.35

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1.5x scale

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.