Home / 7,525.75-10,385.42-4,122.74

Finding the Fourth Proportional to 7,525.75, 10,385.42 and 4,122.74

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Solution

The fourth proportional to 7,525.75, 10,385.42 and 4,122.74 is: 5,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,525.75 : 10,385.42 = 4,122.74 : x
  2. Step 2: Convert to fraction form
    7,525.75/10,385.42 = 4,122.74/x
  3. Step 3: Cross multiply
    7,525.75x = 10,385.42 × 4,122.74
  4. Step 4: Simplify right side
    7,525.75x = 42,816,329.37
  5. Step 5: Solve for x
    x = 42,816,329.37/7,525.75
  6. Step 6: Final answer
    x = 5,689.31

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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.