Home / 5,720.10-8,580.55-2,256.90

Finding the Fourth Proportional to 5,720.10, 8,580.55 and 2,256.90

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Solution

The fourth proportional to 5,720.10, 8,580.55 and 2,256.90 is: 3,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.10 : 8,580.55 = 2,256.90 : x
  2. Step 2: Convert to fraction form
    5,720.10/8,580.55 = 2,256.90/x
  3. Step 3: Cross multiply
    5,720.10x = 8,580.55 × 2,256.90
  4. Step 4: Simplify right side
    5,720.10x = 19,365,443.30
  5. Step 5: Solve for x
    x = 19,365,443.30/5,720.10
  6. Step 6: Final answer
    x = 3,385.51

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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.