Home / 5,353.14-7,386.66-3,228.78

Finding the Fourth Proportional to 5,353.14, 7,386.66 and 3,228.78

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Solution

The fourth proportional to 5,353.14, 7,386.66 and 3,228.78 is: 4,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.14 : 7,386.66 = 3,228.78 : x
  2. Step 2: Convert to fraction form
    5,353.14/7,386.66 = 3,228.78/x
  3. Step 3: Cross multiply
    5,353.14x = 7,386.66 × 3,228.78
  4. Step 4: Simplify right side
    5,353.14x = 23,849,900.07
  5. Step 5: Solve for x
    x = 23,849,900.07/5,353.14
  6. Step 6: Final answer
    x = 4,455.31

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1.5x scale

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.