Home / 5,136.68-7,088.94-2,898.32

Finding the Fourth Proportional to 5,136.68, 7,088.94 and 2,898.32

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Solution

The fourth proportional to 5,136.68, 7,088.94 and 2,898.32 is: 3,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.68 : 7,088.94 = 2,898.32 : x
  2. Step 2: Convert to fraction form
    5,136.68/7,088.94 = 2,898.32/x
  3. Step 3: Cross multiply
    5,136.68x = 7,088.94 × 2,898.32
  4. Step 4: Simplify right side
    5,136.68x = 20,546,016.58
  5. Step 5: Solve for x
    x = 20,546,016.58/5,136.68
  6. Step 6: Final answer
    x = 3,999.86

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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.