Home / 5,429.02-8,142.57-2,143.09

Finding the Fourth Proportional to 5,429.02, 8,142.57 and 2,143.09

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Solution

The fourth proportional to 5,429.02, 8,142.57 and 2,143.09 is: 3,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.02 : 8,142.57 = 2,143.09 : x
  2. Step 2: Convert to fraction form
    5,429.02/8,142.57 = 2,143.09/x
  3. Step 3: Cross multiply
    5,429.02x = 8,142.57 × 2,143.09
  4. Step 4: Simplify right side
    5,429.02x = 17,450,260.34
  5. Step 5: Solve for x
    x = 17,450,260.34/5,429.02
  6. Step 6: Final answer
    x = 3,214.26

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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.