Home / 3,903.83-5,854.99-1,129.80

Finding the Fourth Proportional to 3,903.83, 5,854.99 and 1,129.80

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Solution

The fourth proportional to 3,903.83, 5,854.99 and 1,129.80 is: 1,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.83 : 5,854.99 = 1,129.80 : x
  2. Step 2: Convert to fraction form
    3,903.83/5,854.99 = 1,129.80/x
  3. Step 3: Cross multiply
    3,903.83x = 5,854.99 × 1,129.80
  4. Step 4: Simplify right side
    3,903.83x = 6,614,967.70
  5. Step 5: Solve for x
    x = 6,614,967.70/3,903.83
  6. Step 6: Final answer
    x = 1,694.48

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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.