Home / 3,539.74-4,885.04-2,123.67

Finding the Fourth Proportional to 3,539.74, 4,885.04 and 2,123.67

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Solution

The fourth proportional to 3,539.74, 4,885.04 and 2,123.67 is: 2,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.74 : 4,885.04 = 2,123.67 : x
  2. Step 2: Convert to fraction form
    3,539.74/4,885.04 = 2,123.67/x
  3. Step 3: Cross multiply
    3,539.74x = 4,885.04 × 2,123.67
  4. Step 4: Simplify right side
    3,539.74x = 10,374,212.90
  5. Step 5: Solve for x
    x = 10,374,212.90/3,539.74
  6. Step 6: Final answer
    x = 2,930.78

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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.