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Finding the Fourth Proportional to 1,339.93, 1,825.08 and 1,336.29

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Solution

The fourth proportional to 1,339.93, 1,825.08 and 1,336.29 is: 1,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.93 : 1,825.08 = 1,336.29 : x
  2. Step 2: Convert to fraction form
    1,339.93/1,825.08 = 1,336.29/x
  3. Step 3: Cross multiply
    1,339.93x = 1,825.08 × 1,336.29
  4. Step 4: Simplify right side
    1,339.93x = 2,438,836.15
  5. Step 5: Solve for x
    x = 2,438,836.15/1,339.93
  6. Step 6: Final answer
    x = 1,820.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.