Home / 3,460.86-5,190.15-1,380.24

Finding the Fourth Proportional to 3,460.86, 5,190.15 and 1,380.24

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Solution

The fourth proportional to 3,460.86, 5,190.15 and 1,380.24 is: 2,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.86 : 5,190.15 = 1,380.24 : x
  2. Step 2: Convert to fraction form
    3,460.86/5,190.15 = 1,380.24/x
  3. Step 3: Cross multiply
    3,460.86x = 5,190.15 × 1,380.24
  4. Step 4: Simplify right side
    3,460.86x = 7,163,652.64
  5. Step 5: Solve for x
    x = 7,163,652.64/3,460.86
  6. Step 6: Final answer
    x = 2,069.91

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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.