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Finding the Fourth Proportional to 7,605.30, 10,489.29 and 4,621.05

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Solution

The fourth proportional to 7,605.30, 10,489.29 and 4,621.05 is: 6,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.30 : 10,489.29 = 4,621.05 : x
  2. Step 2: Convert to fraction form
    7,605.30/10,489.29 = 4,621.05/x
  3. Step 3: Cross multiply
    7,605.30x = 10,489.29 × 4,621.05
  4. Step 4: Simplify right side
    7,605.30x = 48,471,533.55
  5. Step 5: Solve for x
    x = 48,471,533.55/7,605.30
  6. Step 6: Final answer
    x = 6,373.39

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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.