Home / 5,485.61-7,568.15-3,126.38

Finding the Fourth Proportional to 5,485.61, 7,568.15 and 3,126.38

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Solution

The fourth proportional to 5,485.61, 7,568.15 and 3,126.38 is: 4,313.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.61 : 7,568.15 = 3,126.38 : x
  2. Step 2: Convert to fraction form
    5,485.61/7,568.15 = 3,126.38/x
  3. Step 3: Cross multiply
    5,485.61x = 7,568.15 × 3,126.38
  4. Step 4: Simplify right side
    5,485.61x = 23,660,859.32
  5. Step 5: Solve for x
    x = 23,660,859.32/5,485.61
  6. Step 6: Final answer
    x = 4,313.26

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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.