Home / 3,892.65-5,371.88-2,124.29

Finding the Fourth Proportional to 3,892.65, 5,371.88 and 2,124.29

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Solution

The fourth proportional to 3,892.65, 5,371.88 and 2,124.29 is: 2,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.65 : 5,371.88 = 2,124.29 : x
  2. Step 2: Convert to fraction form
    3,892.65/5,371.88 = 2,124.29/x
  3. Step 3: Cross multiply
    3,892.65x = 5,371.88 × 2,124.29
  4. Step 4: Simplify right side
    3,892.65x = 11,411,451.81
  5. Step 5: Solve for x
    x = 11,411,451.81/3,892.65
  6. Step 6: Final answer
    x = 2,931.54

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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.