Home / 5,521.30-8,279.10-1,625.20

Finding the Fourth Proportional to 5,521.30, 8,279.10 and 1,625.20

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Solution

The fourth proportional to 5,521.30, 8,279.10 and 1,625.20 is: 2,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.30 : 8,279.10 = 1,625.20 : x
  2. Step 2: Convert to fraction form
    5,521.30/8,279.10 = 1,625.20/x
  3. Step 3: Cross multiply
    5,521.30x = 8,279.10 × 1,625.20
  4. Step 4: Simplify right side
    5,521.30x = 13,455,193.32
  5. Step 5: Solve for x
    x = 13,455,193.32/5,521.30
  6. Step 6: Final answer
    x = 2,436.96

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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.