Home / 3,905.80-5,854.93-1,439.27

Finding the Fourth Proportional to 3,905.80, 5,854.93 and 1,439.27

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Solution

The fourth proportional to 3,905.80, 5,854.93 and 1,439.27 is: 2,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.80 : 5,854.93 = 1,439.27 : x
  2. Step 2: Convert to fraction form
    3,905.80/5,854.93 = 1,439.27/x
  3. Step 3: Cross multiply
    3,905.80x = 5,854.93 × 1,439.27
  4. Step 4: Simplify right side
    3,905.80x = 8,426,788.63
  5. Step 5: Solve for x
    x = 8,426,788.63/3,905.80
  6. Step 6: Final answer
    x = 2,157.51

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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.