Home / 5,386.09-7,432.14-3,117.82

Finding the Fourth Proportional to 5,386.09, 7,432.14 and 3,117.82

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Solution

The fourth proportional to 5,386.09, 7,432.14 and 3,117.82 is: 4,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.09 : 7,432.14 = 3,117.82 : x
  2. Step 2: Convert to fraction form
    5,386.09/7,432.14 = 3,117.82/x
  3. Step 3: Cross multiply
    5,386.09x = 7,432.14 × 3,117.82
  4. Step 4: Simplify right side
    5,386.09x = 23,172,074.73
  5. Step 5: Solve for x
    x = 23,172,074.73/5,386.09
  6. Step 6: Final answer
    x = 4,302.21

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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.