Home / 2,910.20-4,342.94-2,598.80

Finding the Fourth Proportional to 2,910.20, 4,342.94 and 2,598.80

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Solution

The fourth proportional to 2,910.20, 4,342.94 and 2,598.80 is: 3,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.20 : 4,342.94 = 2,598.80 : x
  2. Step 2: Convert to fraction form
    2,910.20/4,342.94 = 2,598.80/x
  3. Step 3: Cross multiply
    2,910.20x = 4,342.94 × 2,598.80
  4. Step 4: Simplify right side
    2,910.20x = 11,286,397.76
  5. Step 5: Solve for x
    x = 11,286,397.76/2,910.20
  6. Step 6: Final answer
    x = 3,878.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.