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Finding the Fourth Proportional to 4,321.96, 6,482.90 and 1,855.18

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Solution

The fourth proportional to 4,321.96, 6,482.90 and 1,855.18 is: 2,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.96 : 6,482.90 = 1,855.18 : x
  2. Step 2: Convert to fraction form
    4,321.96/6,482.90 = 1,855.18/x
  3. Step 3: Cross multiply
    4,321.96x = 6,482.90 × 1,855.18
  4. Step 4: Simplify right side
    4,321.96x = 12,026,946.42
  5. Step 5: Solve for x
    x = 12,026,946.42/4,321.96
  6. Step 6: Final answer
    x = 2,782.75

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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.