Home / 7,045.21-9,722.69-3,901.39

Finding the Fourth Proportional to 7,045.21, 9,722.69 and 3,901.39

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Solution

The fourth proportional to 7,045.21, 9,722.69 and 3,901.39 is: 5,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.21 : 9,722.69 = 3,901.39 : x
  2. Step 2: Convert to fraction form
    7,045.21/9,722.69 = 3,901.39/x
  3. Step 3: Cross multiply
    7,045.21x = 9,722.69 × 3,901.39
  4. Step 4: Simplify right side
    7,045.21x = 37,932,005.54
  5. Step 5: Solve for x
    x = 37,932,005.54/7,045.21
  6. Step 6: Final answer
    x = 5,384.08

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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.