Home / 1,368.32-2,062.01-1,238.42

Finding the Fourth Proportional to 1,368.32, 2,062.01 and 1,238.42

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Solution

The fourth proportional to 1,368.32, 2,062.01 and 1,238.42 is: 1,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.32 : 2,062.01 = 1,238.42 : x
  2. Step 2: Convert to fraction form
    1,368.32/2,062.01 = 1,238.42/x
  3. Step 3: Cross multiply
    1,368.32x = 2,062.01 × 1,238.42
  4. Step 4: Simplify right side
    1,368.32x = 2,553,617.92
  5. Step 5: Solve for x
    x = 2,553,617.92/1,368.32
  6. Step 6: Final answer
    x = 1,866.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.