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Finding the Fourth Proportional to 5,388.94, 8,074.47 and 1,877.09

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Solution

The fourth proportional to 5,388.94, 8,074.47 and 1,877.09 is: 2,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.94 : 8,074.47 = 1,877.09 : x
  2. Step 2: Convert to fraction form
    5,388.94/8,074.47 = 1,877.09/x
  3. Step 3: Cross multiply
    5,388.94x = 8,074.47 × 1,877.09
  4. Step 4: Simplify right side
    5,388.94x = 15,156,506.89
  5. Step 5: Solve for x
    x = 15,156,506.89/5,388.94
  6. Step 6: Final answer
    x = 2,812.52

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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.