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Finding the Fourth Proportional to 3,599.91, 5,398.65 and 1,954.80

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Solution

The fourth proportional to 3,599.91, 5,398.65 and 1,954.80 is: 2,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.91 : 5,398.65 = 1,954.80 : x
  2. Step 2: Convert to fraction form
    3,599.91/5,398.65 = 1,954.80/x
  3. Step 3: Cross multiply
    3,599.91x = 5,398.65 × 1,954.80
  4. Step 4: Simplify right side
    3,599.91x = 10,553,281.02
  5. Step 5: Solve for x
    x = 10,553,281.02/3,599.91
  6. Step 6: Final answer
    x = 2,931.54

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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.