Home / 4,778.50-7,169.58-1,857.04

Finding the Fourth Proportional to 4,778.50, 7,169.58 and 1,857.04

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Solution

The fourth proportional to 4,778.50, 7,169.58 and 1,857.04 is: 2,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.50 : 7,169.58 = 1,857.04 : x
  2. Step 2: Convert to fraction form
    4,778.50/7,169.58 = 1,857.04/x
  3. Step 3: Cross multiply
    4,778.50x = 7,169.58 × 1,857.04
  4. Step 4: Simplify right side
    4,778.50x = 13,314,151.71
  5. Step 5: Solve for x
    x = 13,314,151.71/4,778.50
  6. Step 6: Final answer
    x = 2,786.26

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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.