Home / 6,490.20-8,956.48-3,506.04

Finding the Fourth Proportional to 6,490.20, 8,956.48 and 3,506.04

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Solution

The fourth proportional to 6,490.20, 8,956.48 and 3,506.04 is: 4,838.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.20 : 8,956.48 = 3,506.04 : x
  2. Step 2: Convert to fraction form
    6,490.20/8,956.48 = 3,506.04/x
  3. Step 3: Cross multiply
    6,490.20x = 8,956.48 × 3,506.04
  4. Step 4: Simplify right side
    6,490.20x = 31,401,714.83
  5. Step 5: Solve for x
    x = 31,401,714.83/6,490.20
  6. Step 6: Final answer
    x = 4,838.33

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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.