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Finding the Fourth Proportional to 2,599.48, 3,899.79 and 955.99

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Solution

The fourth proportional to 2,599.48, 3,899.79 and 955.99 is: 1,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.48 : 3,899.79 = 955.99 : x
  2. Step 2: Convert to fraction form
    2,599.48/3,899.79 = 955.99/x
  3. Step 3: Cross multiply
    2,599.48x = 3,899.79 × 955.99
  4. Step 4: Simplify right side
    2,599.48x = 3,728,160.24
  5. Step 5: Solve for x
    x = 3,728,160.24/2,599.48
  6. Step 6: Final answer
    x = 1,434.19

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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.