Home / 6,420.44-8,859.89-3,587.25

Finding the Fourth Proportional to 6,420.44, 8,859.89 and 3,587.25

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Solution

The fourth proportional to 6,420.44, 8,859.89 and 3,587.25 is: 4,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.44 : 8,859.89 = 3,587.25 : x
  2. Step 2: Convert to fraction form
    6,420.44/8,859.89 = 3,587.25/x
  3. Step 3: Cross multiply
    6,420.44x = 8,859.89 × 3,587.25
  4. Step 4: Simplify right side
    6,420.44x = 31,782,640.40
  5. Step 5: Solve for x
    x = 31,782,640.40/6,420.44
  6. Step 6: Final answer
    x = 4,950.23

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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.