Home / 3,307.15-4,562.94-2,128.90

Finding the Fourth Proportional to 3,307.15, 4,562.94 and 2,128.90

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Solution

The fourth proportional to 3,307.15, 4,562.94 and 2,128.90 is: 2,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.15 : 4,562.94 = 2,128.90 : x
  2. Step 2: Convert to fraction form
    3,307.15/4,562.94 = 2,128.90/x
  3. Step 3: Cross multiply
    3,307.15x = 4,562.94 × 2,128.90
  4. Step 4: Simplify right side
    3,307.15x = 9,714,042.97
  5. Step 5: Solve for x
    x = 9,714,042.97/3,307.15
  6. Step 6: Final answer
    x = 2,937.29

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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.