Home / 5,720.20-8,580.30-5,671.60

Finding the Fourth Proportional to 5,720.20, 8,580.30 and 5,671.60

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Solution

The fourth proportional to 5,720.20, 8,580.30 and 5,671.60 is: 8,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.20 : 8,580.30 = 5,671.60 : x
  2. Step 2: Convert to fraction form
    5,720.20/8,580.30 = 5,671.60/x
  3. Step 3: Cross multiply
    5,720.20x = 8,580.30 × 5,671.60
  4. Step 4: Simplify right side
    5,720.20x = 48,664,029.48
  5. Step 5: Solve for x
    x = 48,664,029.48/5,720.20
  6. Step 6: Final answer
    x = 8,507.40

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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.