Home / 3,720.90-5,580.99-2,259.66

Finding the Fourth Proportional to 3,720.90, 5,580.99 and 2,259.66

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Solution

The fourth proportional to 3,720.90, 5,580.99 and 2,259.66 is: 3,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.90 : 5,580.99 = 2,259.66 : x
  2. Step 2: Convert to fraction form
    3,720.90/5,580.99 = 2,259.66/x
  3. Step 3: Cross multiply
    3,720.90x = 5,580.99 × 2,259.66
  4. Step 4: Simplify right side
    3,720.90x = 12,611,139.86
  5. Step 5: Solve for x
    x = 12,611,139.86/3,720.90
  6. Step 6: Final answer
    x = 3,389.27

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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.