Home / 1,349.93-2,009.62-1,342.64

Finding the Fourth Proportional to 1,349.93, 2,009.62 and 1,342.64

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Solution

The fourth proportional to 1,349.93, 2,009.62 and 1,342.64 is: 1,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.93 : 2,009.62 = 1,342.64 : x
  2. Step 2: Convert to fraction form
    1,349.93/2,009.62 = 1,342.64/x
  3. Step 3: Cross multiply
    1,349.93x = 2,009.62 × 1,342.64
  4. Step 4: Simplify right side
    1,349.93x = 2,698,196.20
  5. Step 5: Solve for x
    x = 2,698,196.20/1,349.93
  6. Step 6: Final answer
    x = 1,998.77

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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.