Home / 6,448.08-8,840.40-6,331.44

Finding the Fourth Proportional to 6,448.08, 8,840.40 and 6,331.44

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Solution

The fourth proportional to 6,448.08, 8,840.40 and 6,331.44 is: 8,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.08 : 8,840.40 = 6,331.44 : x
  2. Step 2: Convert to fraction form
    6,448.08/8,840.40 = 6,331.44/x
  3. Step 3: Cross multiply
    6,448.08x = 8,840.40 × 6,331.44
  4. Step 4: Simplify right side
    6,448.08x = 55,972,462.18
  5. Step 5: Solve for x
    x = 55,972,462.18/6,448.08
  6. Step 6: Final answer
    x = 8,680.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.