Home / 5,690.12-8,520.60-3,492.20

Finding the Fourth Proportional to 5,690.12, 8,520.60 and 3,492.20

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Solution

The fourth proportional to 5,690.12, 8,520.60 and 3,492.20 is: 5,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.12 : 8,520.60 = 3,492.20 : x
  2. Step 2: Convert to fraction form
    5,690.12/8,520.60 = 3,492.20/x
  3. Step 3: Cross multiply
    5,690.12x = 8,520.60 × 3,492.20
  4. Step 4: Simplify right side
    5,690.12x = 29,755,639.32
  5. Step 5: Solve for x
    x = 29,755,639.32/5,690.12
  6. Step 6: Final answer
    x = 5,229.35

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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.