Home / 4,980.45-7,466.58-2,639.05

Finding the Fourth Proportional to 4,980.45, 7,466.58 and 2,639.05

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Solution

The fourth proportional to 4,980.45, 7,466.58 and 2,639.05 is: 3,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.45 : 7,466.58 = 2,639.05 : x
  2. Step 2: Convert to fraction form
    4,980.45/7,466.58 = 2,639.05/x
  3. Step 3: Cross multiply
    4,980.45x = 7,466.58 × 2,639.05
  4. Step 4: Simplify right side
    4,980.45x = 19,704,659.28
  5. Step 5: Solve for x
    x = 19,704,659.28/4,980.45
  6. Step 6: Final answer
    x = 3,956.40

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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.