Home / 5,409.33-7,465.57-3,171.20

Finding the Fourth Proportional to 5,409.33, 7,465.57 and 3,171.20

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Solution

The fourth proportional to 5,409.33, 7,465.57 and 3,171.20 is: 4,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.33 : 7,465.57 = 3,171.20 : x
  2. Step 2: Convert to fraction form
    5,409.33/7,465.57 = 3,171.20/x
  3. Step 3: Cross multiply
    5,409.33x = 7,465.57 × 3,171.20
  4. Step 4: Simplify right side
    5,409.33x = 23,674,812.32
  5. Step 5: Solve for x
    x = 23,674,812.32/5,409.33
  6. Step 6: Final answer
    x = 4,376.66

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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.