Home / 5,135.80-7,703.52-1,625.80

Finding the Fourth Proportional to 5,135.80, 7,703.52 and 1,625.80

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Solution

The fourth proportional to 5,135.80, 7,703.52 and 1,625.80 is: 2,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.80 : 7,703.52 = 1,625.80 : x
  2. Step 2: Convert to fraction form
    5,135.80/7,703.52 = 1,625.80/x
  3. Step 3: Cross multiply
    5,135.80x = 7,703.52 × 1,625.80
  4. Step 4: Simplify right side
    5,135.80x = 12,524,382.82
  5. Step 5: Solve for x
    x = 12,524,382.82/5,135.80
  6. Step 6: Final answer
    x = 2,438.64

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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.