Home / 2,919.61-4,358.62-2,817.09

Finding the Fourth Proportional to 2,919.61, 4,358.62 and 2,817.09

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Solution

The fourth proportional to 2,919.61, 4,358.62 and 2,817.09 is: 4,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.61 : 4,358.62 = 2,817.09 : x
  2. Step 2: Convert to fraction form
    2,919.61/4,358.62 = 2,817.09/x
  3. Step 3: Cross multiply
    2,919.61x = 4,358.62 × 2,817.09
  4. Step 4: Simplify right side
    2,919.61x = 12,278,628.34
  5. Step 5: Solve for x
    x = 12,278,628.34/2,919.61
  6. Step 6: Final answer
    x = 4,205.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.