Home / 3,253.20-4,871.70-2,605.20

Finding the Fourth Proportional to 3,253.20, 4,871.70 and 2,605.20

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Solution

The fourth proportional to 3,253.20, 4,871.70 and 2,605.20 is: 3,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.20 : 4,871.70 = 2,605.20 : x
  2. Step 2: Convert to fraction form
    3,253.20/4,871.70 = 2,605.20/x
  3. Step 3: Cross multiply
    3,253.20x = 4,871.70 × 2,605.20
  4. Step 4: Simplify right side
    3,253.20x = 12,691,752.84
  5. Step 5: Solve for x
    x = 12,691,752.84/3,253.20
  6. Step 6: Final answer
    x = 3,901.31

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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.