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Finding the Fourth Proportional to 2,600.24, 3,900.36 and 751.62

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Solution

The fourth proportional to 2,600.24, 3,900.36 and 751.62 is: 1,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.24 : 3,900.36 = 751.62 : x
  2. Step 2: Convert to fraction form
    2,600.24/3,900.36 = 751.62/x
  3. Step 3: Cross multiply
    2,600.24x = 3,900.36 × 751.62
  4. Step 4: Simplify right side
    2,600.24x = 2,931,588.58
  5. Step 5: Solve for x
    x = 2,931,588.58/2,600.24
  6. Step 6: Final answer
    x = 1,127.43

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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.