Home / 4,235.20-6,353.70-1,638.12

Finding the Fourth Proportional to 4,235.20, 6,353.70 and 1,638.12

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Solution

The fourth proportional to 4,235.20, 6,353.70 and 1,638.12 is: 2,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,235.20 : 6,353.70 = 1,638.12 : x
  2. Step 2: Convert to fraction form
    4,235.20/6,353.70 = 1,638.12/x
  3. Step 3: Cross multiply
    4,235.20x = 6,353.70 × 1,638.12
  4. Step 4: Simplify right side
    4,235.20x = 10,408,123.04
  5. Step 5: Solve for x
    x = 10,408,123.04/4,235.20
  6. Step 6: Final answer
    x = 2,457.53

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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.