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Finding the Fourth Proportional to 3,187.71, 4,394.12 and 2,597.22

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Solution

The fourth proportional to 3,187.71, 4,394.12 and 2,597.22 is: 3,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.71 : 4,394.12 = 2,597.22 : x
  2. Step 2: Convert to fraction form
    3,187.71/4,394.12 = 2,597.22/x
  3. Step 3: Cross multiply
    3,187.71x = 4,394.12 × 2,597.22
  4. Step 4: Simplify right side
    3,187.71x = 11,412,483.36
  5. Step 5: Solve for x
    x = 11,412,483.36/3,187.71
  6. Step 6: Final answer
    x = 3,580.15

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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.