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Finding the Fourth Proportional to 6,129.87, 8,459.28 and 3,477.30

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Solution

The fourth proportional to 6,129.87, 8,459.28 and 3,477.30 is: 4,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.87 : 8,459.28 = 3,477.30 : x
  2. Step 2: Convert to fraction form
    6,129.87/8,459.28 = 3,477.30/x
  3. Step 3: Cross multiply
    6,129.87x = 8,459.28 × 3,477.30
  4. Step 4: Simplify right side
    6,129.87x = 29,415,454.34
  5. Step 5: Solve for x
    x = 29,415,454.34/6,129.87
  6. Step 6: Final answer
    x = 4,798.71

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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.