Home / 7,045.06-9,721.20-3,901.46

Finding the Fourth Proportional to 7,045.06, 9,721.20 and 3,901.46

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Solution

The fourth proportional to 7,045.06, 9,721.20 and 3,901.46 is: 5,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.06 : 9,721.20 = 3,901.46 : x
  2. Step 2: Convert to fraction form
    7,045.06/9,721.20 = 3,901.46/x
  3. Step 3: Cross multiply
    7,045.06x = 9,721.20 × 3,901.46
  4. Step 4: Simplify right side
    7,045.06x = 37,926,872.95
  5. Step 5: Solve for x
    x = 37,926,872.95/7,045.06
  6. Step 6: Final answer
    x = 5,383.47

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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.