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Finding the Fourth Proportional to 5,213.58, 7,821.12 and 1,925.82

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Solution

The fourth proportional to 5,213.58, 7,821.12 and 1,925.82 is: 2,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.58 : 7,821.12 = 1,925.82 : x
  2. Step 2: Convert to fraction form
    5,213.58/7,821.12 = 1,925.82/x
  3. Step 3: Cross multiply
    5,213.58x = 7,821.12 × 1,925.82
  4. Step 4: Simplify right side
    5,213.58x = 15,062,069.32
  5. Step 5: Solve for x
    x = 15,062,069.32/5,213.58
  6. Step 6: Final answer
    x = 2,889.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.