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Finding the Fourth Proportional to 6,279.36, 8,664.54 and 3,590.10

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Solution

The fourth proportional to 6,279.36, 8,664.54 and 3,590.10 is: 4,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.36 : 8,664.54 = 3,590.10 : x
  2. Step 2: Convert to fraction form
    6,279.36/8,664.54 = 3,590.10/x
  3. Step 3: Cross multiply
    6,279.36x = 8,664.54 × 3,590.10
  4. Step 4: Simplify right side
    6,279.36x = 31,106,565.05
  5. Step 5: Solve for x
    x = 31,106,565.05/6,279.36
  6. Step 6: Final answer
    x = 4,953.78

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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.