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Finding the Fourth Proportional to 2,605.81, 3,591.28 and 2,058.39

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Solution

The fourth proportional to 2,605.81, 3,591.28 and 2,058.39 is: 2,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.81 : 3,591.28 = 2,058.39 : x
  2. Step 2: Convert to fraction form
    2,605.81/3,591.28 = 2,058.39/x
  3. Step 3: Cross multiply
    2,605.81x = 3,591.28 × 2,058.39
  4. Step 4: Simplify right side
    2,605.81x = 7,392,254.84
  5. Step 5: Solve for x
    x = 7,392,254.84/2,605.81
  6. Step 6: Final answer
    x = 2,836.84

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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.