Home / 5,435.10-8,136.45-5,114.70

Finding the Fourth Proportional to 5,435.10, 8,136.45 and 5,114.70

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Solution

The fourth proportional to 5,435.10, 8,136.45 and 5,114.70 is: 7,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.10 : 8,136.45 = 5,114.70 : x
  2. Step 2: Convert to fraction form
    5,435.10/8,136.45 = 5,114.70/x
  3. Step 3: Cross multiply
    5,435.10x = 8,136.45 × 5,114.70
  4. Step 4: Simplify right side
    5,435.10x = 41,615,500.82
  5. Step 5: Solve for x
    x = 41,615,500.82/5,435.10
  6. Step 6: Final answer
    x = 7,656.80

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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.