Home / 2,965.20-4,458.60-2,900.40

Finding the Fourth Proportional to 2,965.20, 4,458.60 and 2,900.40

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Solution

The fourth proportional to 2,965.20, 4,458.60 and 2,900.40 is: 4,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.20 : 4,458.60 = 2,900.40 : x
  2. Step 2: Convert to fraction form
    2,965.20/4,458.60 = 2,900.40/x
  3. Step 3: Cross multiply
    2,965.20x = 4,458.60 × 2,900.40
  4. Step 4: Simplify right side
    2,965.20x = 12,931,723.44
  5. Step 5: Solve for x
    x = 12,931,723.44/2,965.20
  6. Step 6: Final answer
    x = 4,361.16

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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.