Home / 3,206.34-4,423.50-2,159.10

Finding the Fourth Proportional to 3,206.34, 4,423.50 and 2,159.10

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Solution

The fourth proportional to 3,206.34, 4,423.50 and 2,159.10 is: 2,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.34 : 4,423.50 = 2,159.10 : x
  2. Step 2: Convert to fraction form
    3,206.34/4,423.50 = 2,159.10/x
  3. Step 3: Cross multiply
    3,206.34x = 4,423.50 × 2,159.10
  4. Step 4: Simplify right side
    3,206.34x = 9,550,778.85
  5. Step 5: Solve for x
    x = 9,550,778.85/3,206.34
  6. Step 6: Final answer
    x = 2,978.72

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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.