Home / 5,364.60-8,046.90-3,420.60

Finding the Fourth Proportional to 5,364.60, 8,046.90 and 3,420.60

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Solution

The fourth proportional to 5,364.60, 8,046.90 and 3,420.60 is: 5,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.60 : 8,046.90 = 3,420.60 : x
  2. Step 2: Convert to fraction form
    5,364.60/8,046.90 = 3,420.60/x
  3. Step 3: Cross multiply
    5,364.60x = 8,046.90 × 3,420.60
  4. Step 4: Simplify right side
    5,364.60x = 27,525,226.14
  5. Step 5: Solve for x
    x = 27,525,226.14/5,364.60
  6. Step 6: Final answer
    x = 5,130.90

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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.