Home / 2,808.89-3,875.42-1,629.74

Finding the Fourth Proportional to 2,808.89, 3,875.42 and 1,629.74

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Solution

The fourth proportional to 2,808.89, 3,875.42 and 1,629.74 is: 2,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.89 : 3,875.42 = 1,629.74 : x
  2. Step 2: Convert to fraction form
    2,808.89/3,875.42 = 1,629.74/x
  3. Step 3: Cross multiply
    2,808.89x = 3,875.42 × 1,629.74
  4. Step 4: Simplify right side
    2,808.89x = 6,315,926.99
  5. Step 5: Solve for x
    x = 6,315,926.99/2,808.89
  6. Step 6: Final answer
    x = 2,248.55

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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.