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Finding the Fourth Proportional to 6,129.60, 8,458.76 and 3,477

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Solution

The fourth proportional to 6,129.60, 8,458.76 and 3,477 is: 4,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.60 : 8,458.76 = 3,477 : x
  2. Step 2: Convert to fraction form
    6,129.60/8,458.76 = 3,477/x
  3. Step 3: Cross multiply
    6,129.60x = 8,458.76 × 3,477
  4. Step 4: Simplify right side
    6,129.60x = 29,411,108.52
  5. Step 5: Solve for x
    x = 29,411,108.52/6,129.60
  6. Step 6: Final answer
    x = 4,798.21

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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.