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Finding the Fourth Proportional to 5,736.79, 8,604.16 and 1,520.07

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Solution

The fourth proportional to 5,736.79, 8,604.16 and 1,520.07 is: 2,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,736.79 : 8,604.16 = 1,520.07 : x
  2. Step 2: Convert to fraction form
    5,736.79/8,604.16 = 1,520.07/x
  3. Step 3: Cross multiply
    5,736.79x = 8,604.16 × 1,520.07
  4. Step 4: Simplify right side
    5,736.79x = 13,078,925.49
  5. Step 5: Solve for x
    x = 13,078,925.49/5,736.79
  6. Step 6: Final answer
    x = 2,279.83

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1.5x scale

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.