Home / 7,218.40-10,828.74-3,058.42

Finding the Fourth Proportional to 7,218.40, 10,828.74 and 3,058.42

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Solution

The fourth proportional to 7,218.40, 10,828.74 and 3,058.42 is: 4,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.40 : 10,828.74 = 3,058.42 : x
  2. Step 2: Convert to fraction form
    7,218.40/10,828.74 = 3,058.42/x
  3. Step 3: Cross multiply
    7,218.40x = 10,828.74 × 3,058.42
  4. Step 4: Simplify right side
    7,218.40x = 33,118,834.99
  5. Step 5: Solve for x
    x = 33,118,834.99/7,218.40
  6. Step 6: Final answer
    x = 4,588.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.