Home / 5,121.83-7,070.30-3,444.21

Finding the Fourth Proportional to 5,121.83, 7,070.30 and 3,444.21

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Solution

The fourth proportional to 5,121.83, 7,070.30 and 3,444.21 is: 4,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.83 : 7,070.30 = 3,444.21 : x
  2. Step 2: Convert to fraction form
    5,121.83/7,070.30 = 3,444.21/x
  3. Step 3: Cross multiply
    5,121.83x = 7,070.30 × 3,444.21
  4. Step 4: Simplify right side
    5,121.83x = 24,351,597.96
  5. Step 5: Solve for x
    x = 24,351,597.96/5,121.83
  6. Step 6: Final answer
    x = 4,754.47

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Half scale
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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.