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Finding the Fourth Proportional to 4,668.98, 6,999.95 and 2,819.71

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Solution

The fourth proportional to 4,668.98, 6,999.95 and 2,819.71 is: 4,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.98 : 6,999.95 = 2,819.71 : x
  2. Step 2: Convert to fraction form
    4,668.98/6,999.95 = 2,819.71/x
  3. Step 3: Cross multiply
    4,668.98x = 6,999.95 × 2,819.71
  4. Step 4: Simplify right side
    4,668.98x = 19,737,844.81
  5. Step 5: Solve for x
    x = 19,737,844.81/4,668.98
  6. Step 6: Final answer
    x = 4,227.45

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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.