Home / 6,279.40-8,663.18-3,625.84

Finding the Fourth Proportional to 6,279.40, 8,663.18 and 3,625.84

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Solution

The fourth proportional to 6,279.40, 8,663.18 and 3,625.84 is: 5,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.40 : 8,663.18 = 3,625.84 : x
  2. Step 2: Convert to fraction form
    6,279.40/8,663.18 = 3,625.84/x
  3. Step 3: Cross multiply
    6,279.40x = 8,663.18 × 3,625.84
  4. Step 4: Simplify right side
    6,279.40x = 31,411,304.57
  5. Step 5: Solve for x
    x = 31,411,304.57/6,279.40
  6. Step 6: Final answer
    x = 5,002.28

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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.