Home / 5,789-7,988.98-3,271.22

Finding the Fourth Proportional to 5,789, 7,988.98 and 3,271.22

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Solution

The fourth proportional to 5,789, 7,988.98 and 3,271.22 is: 4,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789 : 7,988.98 = 3,271.22 : x
  2. Step 2: Convert to fraction form
    5,789/7,988.98 = 3,271.22/x
  3. Step 3: Cross multiply
    5,789x = 7,988.98 × 3,271.22
  4. Step 4: Simplify right side
    5,789x = 26,133,711.16
  5. Step 5: Solve for x
    x = 26,133,711.16/5,789
  6. Step 6: Final answer
    x = 4,514.37

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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.