Home / 6,412.02-9,618.30-3,128.04

Finding the Fourth Proportional to 6,412.02, 9,618.30 and 3,128.04

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Solution

The fourth proportional to 6,412.02, 9,618.30 and 3,128.04 is: 4,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.02 : 9,618.30 = 3,128.04 : x
  2. Step 2: Convert to fraction form
    6,412.02/9,618.30 = 3,128.04/x
  3. Step 3: Cross multiply
    6,412.02x = 9,618.30 × 3,128.04
  4. Step 4: Simplify right side
    6,412.02x = 30,086,427.13
  5. Step 5: Solve for x
    x = 30,086,427.13/6,412.02
  6. Step 6: Final answer
    x = 4,692.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.