Home / 3,720.34-5,579.57-1,379.06

Finding the Fourth Proportional to 3,720.34, 5,579.57 and 1,379.06

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Solution

The fourth proportional to 3,720.34, 5,579.57 and 1,379.06 is: 2,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.34 : 5,579.57 = 1,379.06 : x
  2. Step 2: Convert to fraction form
    3,720.34/5,579.57 = 1,379.06/x
  3. Step 3: Cross multiply
    3,720.34x = 5,579.57 × 1,379.06
  4. Step 4: Simplify right side
    3,720.34x = 7,694,558.28
  5. Step 5: Solve for x
    x = 7,694,558.28/3,720.34
  6. Step 6: Final answer
    x = 2,068.24

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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.