Home / 2,953.20-4,429.80-2,761.20

Finding the Fourth Proportional to 2,953.20, 4,429.80 and 2,761.20

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Solution

The fourth proportional to 2,953.20, 4,429.80 and 2,761.20 is: 4,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.20 : 4,429.80 = 2,761.20 : x
  2. Step 2: Convert to fraction form
    2,953.20/4,429.80 = 2,761.20/x
  3. Step 3: Cross multiply
    2,953.20x = 4,429.80 × 2,761.20
  4. Step 4: Simplify right side
    2,953.20x = 12,231,563.76
  5. Step 5: Solve for x
    x = 12,231,563.76/2,953.20
  6. Step 6: Final answer
    x = 4,141.80

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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.