Home / 2,830.24-3,905.68-1,571.27

Finding the Fourth Proportional to 2,830.24, 3,905.68 and 1,571.27

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Solution

The fourth proportional to 2,830.24, 3,905.68 and 1,571.27 is: 2,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.24 : 3,905.68 = 1,571.27 : x
  2. Step 2: Convert to fraction form
    2,830.24/3,905.68 = 1,571.27/x
  3. Step 3: Cross multiply
    2,830.24x = 3,905.68 × 1,571.27
  4. Step 4: Simplify right side
    2,830.24x = 6,136,875.99
  5. Step 5: Solve for x
    x = 6,136,875.99/2,830.24
  6. Step 6: Final answer
    x = 2,168.32

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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.