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Finding the Fourth Proportional to 8,590.94, 12,887.50 and 3,043.20

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Solution

The fourth proportional to 8,590.94, 12,887.50 and 3,043.20 is: 4,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.94 : 12,887.50 = 3,043.20 : x
  2. Step 2: Convert to fraction form
    8,590.94/12,887.50 = 3,043.20/x
  3. Step 3: Cross multiply
    8,590.94x = 12,887.50 × 3,043.20
  4. Step 4: Simplify right side
    8,590.94x = 39,219,240
  5. Step 5: Solve for x
    x = 39,219,240/8,590.94
  6. Step 6: Final answer
    x = 4,565.19

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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.