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Finding the Fourth Proportional to 8,395.79, 12,590.79 and 3,462.89

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Solution

The fourth proportional to 8,395.79, 12,590.79 and 3,462.89 is: 5,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.79 : 12,590.79 = 3,462.89 : x
  2. Step 2: Convert to fraction form
    8,395.79/12,590.79 = 3,462.89/x
  3. Step 3: Cross multiply
    8,395.79x = 12,590.79 × 3,462.89
  4. Step 4: Simplify right side
    8,395.79x = 43,600,464.32
  5. Step 5: Solve for x
    x = 43,600,464.32/8,395.79
  6. Step 6: Final answer
    x = 5,193.14

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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.