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Finding the Fourth Proportional to 3,539.88, 4,885.20 and 1,967.94

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Solution

The fourth proportional to 3,539.88, 4,885.20 and 1,967.94 is: 2,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.88 : 4,885.20 = 1,967.94 : x
  2. Step 2: Convert to fraction form
    3,539.88/4,885.20 = 1,967.94/x
  3. Step 3: Cross multiply
    3,539.88x = 4,885.20 × 1,967.94
  4. Step 4: Simplify right side
    3,539.88x = 9,613,780.49
  5. Step 5: Solve for x
    x = 9,613,780.49/3,539.88
  6. Step 6: Final answer
    x = 2,715.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.