Home / 3,458.95-5,188.43-1,120.91

Finding the Fourth Proportional to 3,458.95, 5,188.43 and 1,120.91

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Solution

The fourth proportional to 3,458.95, 5,188.43 and 1,120.91 is: 1,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.95 : 5,188.43 = 1,120.91 : x
  2. Step 2: Convert to fraction form
    3,458.95/5,188.43 = 1,120.91/x
  3. Step 3: Cross multiply
    3,458.95x = 5,188.43 × 1,120.91
  4. Step 4: Simplify right side
    3,458.95x = 5,815,780.56
  5. Step 5: Solve for x
    x = 5,815,780.56/3,458.95
  6. Step 6: Final answer
    x = 1,681.37

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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.