Home / 4,145.57-6,219.40-1,372.20

Finding the Fourth Proportional to 4,145.57, 6,219.40 and 1,372.20

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Solution

The fourth proportional to 4,145.57, 6,219.40 and 1,372.20 is: 2,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.57 : 6,219.40 = 1,372.20 : x
  2. Step 2: Convert to fraction form
    4,145.57/6,219.40 = 1,372.20/x
  3. Step 3: Cross multiply
    4,145.57x = 6,219.40 × 1,372.20
  4. Step 4: Simplify right side
    4,145.57x = 8,534,260.68
  5. Step 5: Solve for x
    x = 8,534,260.68/4,145.57
  6. Step 6: Final answer
    x = 2,058.65

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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.