Home / 7,038.20-9,712.74-3,851.54

Finding the Fourth Proportional to 7,038.20, 9,712.74 and 3,851.54

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Solution

The fourth proportional to 7,038.20, 9,712.74 and 3,851.54 is: 5,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.20 : 9,712.74 = 3,851.54 : x
  2. Step 2: Convert to fraction form
    7,038.20/9,712.74 = 3,851.54/x
  3. Step 3: Cross multiply
    7,038.20x = 9,712.74 × 3,851.54
  4. Step 4: Simplify right side
    7,038.20x = 37,409,006.62
  5. Step 5: Solve for x
    x = 37,409,006.62/7,038.20
  6. Step 6: Final answer
    x = 5,315.14

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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.