Home / 6,271.48-8,654.64-3,400.21

Finding the Fourth Proportional to 6,271.48, 8,654.64 and 3,400.21

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Solution

The fourth proportional to 6,271.48, 8,654.64 and 3,400.21 is: 4,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,271.48 : 8,654.64 = 3,400.21 : x
  2. Step 2: Convert to fraction form
    6,271.48/8,654.64 = 3,400.21/x
  3. Step 3: Cross multiply
    6,271.48x = 8,654.64 × 3,400.21
  4. Step 4: Simplify right side
    6,271.48x = 29,427,593.47
  5. Step 5: Solve for x
    x = 29,427,593.47/6,271.48
  6. Step 6: Final answer
    x = 4,692.29

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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.