Home / 4,781.67-7,169.40-1,661.45

Finding the Fourth Proportional to 4,781.67, 7,169.40 and 1,661.45

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Solution

The fourth proportional to 4,781.67, 7,169.40 and 1,661.45 is: 2,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.67 : 7,169.40 = 1,661.45 : x
  2. Step 2: Convert to fraction form
    4,781.67/7,169.40 = 1,661.45/x
  3. Step 3: Cross multiply
    4,781.67x = 7,169.40 × 1,661.45
  4. Step 4: Simplify right side
    4,781.67x = 11,911,563.78
  5. Step 5: Solve for x
    x = 11,911,563.78/4,781.67
  6. Step 6: Final answer
    x = 2,491.09

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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.