Home / 5,515.07-7,612.11-3,158.60

Finding the Fourth Proportional to 5,515.07, 7,612.11 and 3,158.60

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Solution

The fourth proportional to 5,515.07, 7,612.11 and 3,158.60 is: 4,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.07 : 7,612.11 = 3,158.60 : x
  2. Step 2: Convert to fraction form
    5,515.07/7,612.11 = 3,158.60/x
  3. Step 3: Cross multiply
    5,515.07x = 7,612.11 × 3,158.60
  4. Step 4: Simplify right side
    5,515.07x = 24,043,572.59
  5. Step 5: Solve for x
    x = 24,043,572.59/5,515.07
  6. Step 6: Final answer
    x = 4,359.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.