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Finding the Fourth Proportional to 3,001.88, 4,142.97 and 1,742.67

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Solution

The fourth proportional to 3,001.88, 4,142.97 and 1,742.67 is: 2,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.88 : 4,142.97 = 1,742.67 : x
  2. Step 2: Convert to fraction form
    3,001.88/4,142.97 = 1,742.67/x
  3. Step 3: Cross multiply
    3,001.88x = 4,142.97 × 1,742.67
  4. Step 4: Simplify right side
    3,001.88x = 7,219,819.17
  5. Step 5: Solve for x
    x = 7,219,819.17/3,001.88
  6. Step 6: Final answer
    x = 2,405.10

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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.