Home / 6,448.02-8,840.32-6,331.38

Finding the Fourth Proportional to 6,448.02, 8,840.32 and 6,331.38

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Solution

The fourth proportional to 6,448.02, 8,840.32 and 6,331.38 is: 8,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.02 : 8,840.32 = 6,331.38 : x
  2. Step 2: Convert to fraction form
    6,448.02/8,840.32 = 6,331.38/x
  3. Step 3: Cross multiply
    6,448.02x = 8,840.32 × 6,331.38
  4. Step 4: Simplify right side
    6,448.02x = 55,971,371.48
  5. Step 5: Solve for x
    x = 55,971,371.48/6,448.02
  6. Step 6: Final answer
    x = 8,680.40

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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.