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Finding the Fourth Proportional to 2,599.47, 3,899.75 and 955.95

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Solution

The fourth proportional to 2,599.47, 3,899.75 and 955.95 is: 1,434.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.47 : 3,899.75 = 955.95 : x
  2. Step 2: Convert to fraction form
    2,599.47/3,899.75 = 955.95/x
  3. Step 3: Cross multiply
    2,599.47x = 3,899.75 × 955.95
  4. Step 4: Simplify right side
    2,599.47x = 3,727,961.23
  5. Step 5: Solve for x
    x = 3,727,961.23/2,599.47
  6. Step 6: Final answer
    x = 1,434.12

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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.