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Finding the Fourth Proportional to 2,852.88, 4,279.90 and 1,620.88

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Solution

The fourth proportional to 2,852.88, 4,279.90 and 1,620.88 is: 2,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.88 : 4,279.90 = 1,620.88 : x
  2. Step 2: Convert to fraction form
    2,852.88/4,279.90 = 1,620.88/x
  3. Step 3: Cross multiply
    2,852.88x = 4,279.90 × 1,620.88
  4. Step 4: Simplify right side
    2,852.88x = 6,937,204.31
  5. Step 5: Solve for x
    x = 6,937,204.31/2,852.88
  6. Step 6: Final answer
    x = 2,431.65

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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.