Home / 2,328.89-3,218.48-1,908.58

Finding the Fourth Proportional to 2,328.89, 3,218.48 and 1,908.58

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Solution

The fourth proportional to 2,328.89, 3,218.48 and 1,908.58 is: 2,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.89 : 3,218.48 = 1,908.58 : x
  2. Step 2: Convert to fraction form
    2,328.89/3,218.48 = 1,908.58/x
  3. Step 3: Cross multiply
    2,328.89x = 3,218.48 × 1,908.58
  4. Step 4: Simplify right side
    2,328.89x = 6,142,716.13
  5. Step 5: Solve for x
    x = 6,142,716.13/2,328.89
  6. Step 6: Final answer
    x = 2,637.62

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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.