Home / 6,420.67-8,860.29-3,588.03

Finding the Fourth Proportional to 6,420.67, 8,860.29 and 3,588.03

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Solution

The fourth proportional to 6,420.67, 8,860.29 and 3,588.03 is: 4,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.67 : 8,860.29 = 3,588.03 : x
  2. Step 2: Convert to fraction form
    6,420.67/8,860.29 = 3,588.03/x
  3. Step 3: Cross multiply
    6,420.67x = 8,860.29 × 3,588.03
  4. Step 4: Simplify right side
    6,420.67x = 31,790,972.87
  5. Step 5: Solve for x
    x = 31,790,972.87/6,420.67
  6. Step 6: Final answer
    x = 4,951.35

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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.