Home / 4,001.21-6,001.88-1,227.92

Finding the Fourth Proportional to 4,001.21, 6,001.88 and 1,227.92

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Solution

The fourth proportional to 4,001.21, 6,001.88 and 1,227.92 is: 1,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.21 : 6,001.88 = 1,227.92 : x
  2. Step 2: Convert to fraction form
    4,001.21/6,001.88 = 1,227.92/x
  3. Step 3: Cross multiply
    4,001.21x = 6,001.88 × 1,227.92
  4. Step 4: Simplify right side
    4,001.21x = 7,369,792.34
  5. Step 5: Solve for x
    x = 7,369,792.34/4,001.21
  6. Step 6: Final answer
    x = 1,841.89

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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.