Home / 3,038.43-4,191.59-1,778.70

Finding the Fourth Proportional to 3,038.43, 4,191.59 and 1,778.70

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Solution

The fourth proportional to 3,038.43, 4,191.59 and 1,778.70 is: 2,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.43 : 4,191.59 = 1,778.70 : x
  2. Step 2: Convert to fraction form
    3,038.43/4,191.59 = 1,778.70/x
  3. Step 3: Cross multiply
    3,038.43x = 4,191.59 × 1,778.70
  4. Step 4: Simplify right side
    3,038.43x = 7,455,584.51
  5. Step 5: Solve for x
    x = 7,455,584.51/3,038.43
  6. Step 6: Final answer
    x = 2,453.76

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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.