Home / 4,212.18-6,319.20-1,615.12

Finding the Fourth Proportional to 4,212.18, 6,319.20 and 1,615.12

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Solution

The fourth proportional to 4,212.18, 6,319.20 and 1,615.12 is: 2,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.18 : 6,319.20 = 1,615.12 : x
  2. Step 2: Convert to fraction form
    4,212.18/6,319.20 = 1,615.12/x
  3. Step 3: Cross multiply
    4,212.18x = 6,319.20 × 1,615.12
  4. Step 4: Simplify right side
    4,212.18x = 10,206,266.30
  5. Step 5: Solve for x
    x = 10,206,266.30/4,212.18
  6. Step 6: Final answer
    x = 2,423.04

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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.