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Finding the Fourth Proportional to 2,602.36, 3,591.21 and 1,423.42

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Solution

The fourth proportional to 2,602.36, 3,591.21 and 1,423.42 is: 1,964.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.36 : 3,591.21 = 1,423.42 : x
  2. Step 2: Convert to fraction form
    2,602.36/3,591.21 = 1,423.42/x
  3. Step 3: Cross multiply
    2,602.36x = 3,591.21 × 1,423.42
  4. Step 4: Simplify right side
    2,602.36x = 5,111,800.14
  5. Step 5: Solve for x
    x = 5,111,800.14/2,602.36
  6. Step 6: Final answer
    x = 1,964.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.