Home / 5,448.59-8,174.40-1,939.40

Finding the Fourth Proportional to 5,448.59, 8,174.40 and 1,939.40

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Solution

The fourth proportional to 5,448.59, 8,174.40 and 1,939.40 is: 2,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.59 : 8,174.40 = 1,939.40 : x
  2. Step 2: Convert to fraction form
    5,448.59/8,174.40 = 1,939.40/x
  3. Step 3: Cross multiply
    5,448.59x = 8,174.40 × 1,939.40
  4. Step 4: Simplify right side
    5,448.59x = 15,853,431.36
  5. Step 5: Solve for x
    x = 15,853,431.36/5,448.59
  6. Step 6: Final answer
    x = 2,909.64

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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.