Home / 4,611.57-6,919.43-1,979.76

Finding the Fourth Proportional to 4,611.57, 6,919.43 and 1,979.76

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Solution

The fourth proportional to 4,611.57, 6,919.43 and 1,979.76 is: 2,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.57 : 6,919.43 = 1,979.76 : x
  2. Step 2: Convert to fraction form
    4,611.57/6,919.43 = 1,979.76/x
  3. Step 3: Cross multiply
    4,611.57x = 6,919.43 × 1,979.76
  4. Step 4: Simplify right side
    4,611.57x = 13,698,800.84
  5. Step 5: Solve for x
    x = 13,698,800.84/4,611.57
  6. Step 6: Final answer
    x = 2,970.53

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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.