Home / 5,538.64-7,643.30-3,020.70

Finding the Fourth Proportional to 5,538.64, 7,643.30 and 3,020.70

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Solution

The fourth proportional to 5,538.64, 7,643.30 and 3,020.70 is: 4,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.64 : 7,643.30 = 3,020.70 : x
  2. Step 2: Convert to fraction form
    5,538.64/7,643.30 = 3,020.70/x
  3. Step 3: Cross multiply
    5,538.64x = 7,643.30 × 3,020.70
  4. Step 4: Simplify right side
    5,538.64x = 23,088,129.87
  5. Step 5: Solve for x
    x = 23,088,129.87/5,538.64
  6. Step 6: Final answer
    x = 4,168.55

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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.