Home / 5,435.96-8,154.90-3,126.20

Finding the Fourth Proportional to 5,435.96, 8,154.90 and 3,126.20

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Solution

The fourth proportional to 5,435.96, 8,154.90 and 3,126.20 is: 4,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.96 : 8,154.90 = 3,126.20 : x
  2. Step 2: Convert to fraction form
    5,435.96/8,154.90 = 3,126.20/x
  3. Step 3: Cross multiply
    5,435.96x = 8,154.90 × 3,126.20
  4. Step 4: Simplify right side
    5,435.96x = 25,493,848.38
  5. Step 5: Solve for x
    x = 25,493,848.38/5,435.96
  6. Step 6: Final answer
    x = 4,689.85

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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.