Home / 5,405.28-7,450.32-4,284.16

Finding the Fourth Proportional to 5,405.28, 7,450.32 and 4,284.16

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Solution

The fourth proportional to 5,405.28, 7,450.32 and 4,284.16 is: 5,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.28 : 7,450.32 = 4,284.16 : x
  2. Step 2: Convert to fraction form
    5,405.28/7,450.32 = 4,284.16/x
  3. Step 3: Cross multiply
    5,405.28x = 7,450.32 × 4,284.16
  4. Step 4: Simplify right side
    5,405.28x = 31,918,362.93
  5. Step 5: Solve for x
    x = 31,918,362.93/5,405.28
  6. Step 6: Final answer
    x = 5,905.03

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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.