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Finding the Fourth Proportional to 2,602.40, 3,591.14 and 1,423.44

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Solution

The fourth proportional to 2,602.40, 3,591.14 and 1,423.44 is: 1,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.40 : 3,591.14 = 1,423.44 : x
  2. Step 2: Convert to fraction form
    2,602.40/3,591.14 = 1,423.44/x
  3. Step 3: Cross multiply
    2,602.40x = 3,591.14 × 1,423.44
  4. Step 4: Simplify right side
    2,602.40x = 5,111,765.20
  5. Step 5: Solve for x
    x = 5,111,765.20/2,602.40
  6. Step 6: Final answer
    x = 1,964.25

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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.