Home / 5,521.49-8,279.63-1,625.12

Finding the Fourth Proportional to 5,521.49, 8,279.63 and 1,625.12

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Solution

The fourth proportional to 5,521.49, 8,279.63 and 1,625.12 is: 2,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.49 : 8,279.63 = 1,625.12 : x
  2. Step 2: Convert to fraction form
    5,521.49/8,279.63 = 1,625.12/x
  3. Step 3: Cross multiply
    5,521.49x = 8,279.63 × 1,625.12
  4. Step 4: Simplify right side
    5,521.49x = 13,455,392.31
  5. Step 5: Solve for x
    x = 13,455,392.31/5,521.49
  6. Step 6: Final answer
    x = 2,436.91

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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.