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Finding the Fourth Proportional to 6,599.61, 9,885.65 and 3,958.74

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Solution

The fourth proportional to 6,599.61, 9,885.65 and 3,958.74 is: 5,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.61 : 9,885.65 = 3,958.74 : x
  2. Step 2: Convert to fraction form
    6,599.61/9,885.65 = 3,958.74/x
  3. Step 3: Cross multiply
    6,599.61x = 9,885.65 × 3,958.74
  4. Step 4: Simplify right side
    6,599.61x = 39,134,718.08
  5. Step 5: Solve for x
    x = 39,134,718.08/6,599.61
  6. Step 6: Final answer
    x = 5,929.85

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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.