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Finding the Fourth Proportional to 3,343.74, 5,012.88 and 1,953.66

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Solution

The fourth proportional to 3,343.74, 5,012.88 and 1,953.66 is: 2,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.74 : 5,012.88 = 1,953.66 : x
  2. Step 2: Convert to fraction form
    3,343.74/5,012.88 = 1,953.66/x
  3. Step 3: Cross multiply
    3,343.74x = 5,012.88 × 1,953.66
  4. Step 4: Simplify right side
    3,343.74x = 9,793,463.14
  5. Step 5: Solve for x
    x = 9,793,463.14/3,343.74
  6. Step 6: Final answer
    x = 2,928.89

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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.