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Finding the Fourth Proportional to 3,080.98, 4,251.54 and 1,754.74

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Solution

The fourth proportional to 3,080.98, 4,251.54 and 1,754.74 is: 2,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.98 : 4,251.54 = 1,754.74 : x
  2. Step 2: Convert to fraction form
    3,080.98/4,251.54 = 1,754.74/x
  3. Step 3: Cross multiply
    3,080.98x = 4,251.54 × 1,754.74
  4. Step 4: Simplify right side
    3,080.98x = 7,460,347.30
  5. Step 5: Solve for x
    x = 7,460,347.30/3,080.98
  6. Step 6: Final answer
    x = 2,421.42

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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.