Home / 5,402.55-8,109.90-4,175.40

Finding the Fourth Proportional to 5,402.55, 8,109.90 and 4,175.40

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Solution

The fourth proportional to 5,402.55, 8,109.90 and 4,175.40 is: 6,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.55 : 8,109.90 = 4,175.40 : x
  2. Step 2: Convert to fraction form
    5,402.55/8,109.90 = 4,175.40/x
  3. Step 3: Cross multiply
    5,402.55x = 8,109.90 × 4,175.40
  4. Step 4: Simplify right side
    5,402.55x = 33,862,076.46
  5. Step 5: Solve for x
    x = 33,862,076.46/5,402.55
  6. Step 6: Final answer
    x = 6,267.80

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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.