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Finding the Fourth Proportional to 2,599.50, 3,899.28 and 750.63

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Solution

The fourth proportional to 2,599.50, 3,899.28 and 750.63 is: 1,125.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.50 : 3,899.28 = 750.63 : x
  2. Step 2: Convert to fraction form
    2,599.50/3,899.28 = 750.63/x
  3. Step 3: Cross multiply
    2,599.50x = 3,899.28 × 750.63
  4. Step 4: Simplify right side
    2,599.50x = 2,926,933.98
  5. Step 5: Solve for x
    x = 2,926,933.98/2,599.50
  6. Step 6: Final answer
    x = 1,125.96

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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.