Home / 6,407.30-8,840.94-3,612.80

Finding the Fourth Proportional to 6,407.30, 8,840.94 and 3,612.80

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Solution

The fourth proportional to 6,407.30, 8,840.94 and 3,612.80 is: 4,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,407.30 : 8,840.94 = 3,612.80 : x
  2. Step 2: Convert to fraction form
    6,407.30/8,840.94 = 3,612.80/x
  3. Step 3: Cross multiply
    6,407.30x = 8,840.94 × 3,612.80
  4. Step 4: Simplify right side
    6,407.30x = 31,940,548.03
  5. Step 5: Solve for x
    x = 31,940,548.03/6,407.30
  6. Step 6: Final answer
    x = 4,985.02

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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.