Home / 5,283.28-7,290.98-3,187

Finding the Fourth Proportional to 5,283.28, 7,290.98 and 3,187

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Solution

The fourth proportional to 5,283.28, 7,290.98 and 3,187 is: 4,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.28 : 7,290.98 = 3,187 : x
  2. Step 2: Convert to fraction form
    5,283.28/7,290.98 = 3,187/x
  3. Step 3: Cross multiply
    5,283.28x = 7,290.98 × 3,187
  4. Step 4: Simplify right side
    5,283.28x = 23,236,353.26
  5. Step 5: Solve for x
    x = 23,236,353.26/5,283.28
  6. Step 6: Final answer
    x = 4,398.09

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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.