Home / 2,807.28-3,873.87-1,548.09

Finding the Fourth Proportional to 2,807.28, 3,873.87 and 1,548.09

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Solution

The fourth proportional to 2,807.28, 3,873.87 and 1,548.09 is: 2,136.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.28 : 3,873.87 = 1,548.09 : x
  2. Step 2: Convert to fraction form
    2,807.28/3,873.87 = 1,548.09/x
  3. Step 3: Cross multiply
    2,807.28x = 3,873.87 × 1,548.09
  4. Step 4: Simplify right side
    2,807.28x = 5,997,099.41
  5. Step 5: Solve for x
    x = 5,997,099.41/2,807.28
  6. Step 6: Final answer
    x = 2,136.27

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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.