Home / 3,237.20-4,407.20-3,208.40

Finding the Fourth Proportional to 3,237.20, 4,407.20 and 3,208.40

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Solution

The fourth proportional to 3,237.20, 4,407.20 and 3,208.40 is: 4,367.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.20 : 4,407.20 = 3,208.40 : x
  2. Step 2: Convert to fraction form
    3,237.20/4,407.20 = 3,208.40/x
  3. Step 3: Cross multiply
    3,237.20x = 4,407.20 × 3,208.40
  4. Step 4: Simplify right side
    3,237.20x = 14,140,060.48
  5. Step 5: Solve for x
    x = 14,140,060.48/3,237.20
  6. Step 6: Final answer
    x = 4,367.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.