Home / 5,385.42-8,076.87-2,097.18

Finding the Fourth Proportional to 5,385.42, 8,076.87 and 2,097.18

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Solution

The fourth proportional to 5,385.42, 8,076.87 and 2,097.18 is: 3,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.42 : 8,076.87 = 2,097.18 : x
  2. Step 2: Convert to fraction form
    5,385.42/8,076.87 = 2,097.18/x
  3. Step 3: Cross multiply
    5,385.42x = 8,076.87 × 2,097.18
  4. Step 4: Simplify right side
    5,385.42x = 16,938,650.23
  5. Step 5: Solve for x
    x = 16,938,650.23/5,385.42
  6. Step 6: Final answer
    x = 3,145.28

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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.