Home / 5,136.02-7,088.43-2,898.09

Finding the Fourth Proportional to 5,136.02, 7,088.43 and 2,898.09

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Solution

The fourth proportional to 5,136.02, 7,088.43 and 2,898.09 is: 3,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.02 : 7,088.43 = 2,898.09 : x
  2. Step 2: Convert to fraction form
    5,136.02/7,088.43 = 2,898.09/x
  3. Step 3: Cross multiply
    5,136.02x = 7,088.43 × 2,898.09
  4. Step 4: Simplify right side
    5,136.02x = 20,542,908.10
  5. Step 5: Solve for x
    x = 20,542,908.10/5,136.02
  6. Step 6: Final answer
    x = 3,999.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.