Home / 5,422.60-8,133.90-4,690

Finding the Fourth Proportional to 5,422.60, 8,133.90 and 4,690

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Solution

The fourth proportional to 5,422.60, 8,133.90 and 4,690 is: 7,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.60 : 8,133.90 = 4,690 : x
  2. Step 2: Convert to fraction form
    5,422.60/8,133.90 = 4,690/x
  3. Step 3: Cross multiply
    5,422.60x = 8,133.90 × 4,690
  4. Step 4: Simplify right side
    5,422.60x = 38,147,991
  5. Step 5: Solve for x
    x = 38,147,991/5,422.60
  6. Step 6: Final answer
    x = 7,035.00

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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.