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Finding the Fourth Proportional to 5,611.95, 8,423.13 and 2,840.58

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Solution

The fourth proportional to 5,611.95, 8,423.13 and 2,840.58 is: 4,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.95 : 8,423.13 = 2,840.58 : x
  2. Step 2: Convert to fraction form
    5,611.95/8,423.13 = 2,840.58/x
  3. Step 3: Cross multiply
    5,611.95x = 8,423.13 × 2,840.58
  4. Step 4: Simplify right side
    5,611.95x = 23,926,577.14
  5. Step 5: Solve for x
    x = 23,926,577.14/5,611.95
  6. Step 6: Final answer
    x = 4,263.51

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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.