Home / 1,618.08-2,416.79-1,399.38

Finding the Fourth Proportional to 1,618.08, 2,416.79 and 1,399.38

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Solution

The fourth proportional to 1,618.08, 2,416.79 and 1,399.38 is: 2,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.08 : 2,416.79 = 1,399.38 : x
  2. Step 2: Convert to fraction form
    1,618.08/2,416.79 = 1,399.38/x
  3. Step 3: Cross multiply
    1,618.08x = 2,416.79 × 1,399.38
  4. Step 4: Simplify right side
    1,618.08x = 3,381,994.15
  5. Step 5: Solve for x
    x = 3,381,994.15/1,618.08
  6. Step 6: Final answer
    x = 2,090.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.